Australia defeated Sri Lanka by 6 wickets in the fourth T20 match

The home side had some initial tremors before going into the middle order to level the chase for 140, going 113-4 with 11 balls remaining.

Australia's six-wicket win over Sri Lanka in the fourth Twenty20 International in Melbourne on Friday saw no need to shift first gear as they were a pity for the tourists who had not yet won the five-match series.

The home side suffered some early setbacks before stabilizing the midfield to chase down 140 before Josh Inglis went 143-4 off 11 balls to take 40 off 20 balls.

With brilliant variations in pace, bowler Lahiru Kumara (2-22) took the wickets of unpredictable opener Ashton Agar (26 off 31 balls) and skipper Aaron Finch (two), who increased his tally to 12 with no half-century.

Inglis, who hit just two sixes in the innings, was paired with Glenn Maxwell (48 not out) on the 49th in the ninth over, both of whom scored an unbeaten 71 to undoubtedly make the decision.

"(English) was like batting on a different wicket," Maxwell said.

"He was quiet in the middle for the fourth match of international cricket."

Earlier, fast bowlers Kane Richardson (2-44) and Jay Richardson (2-20) took late wickets to control Sri Lanka to 139-8, when a higher match score could be achieved - summarizing Sri Lanka's batting. Tragedies in Australia.

World champions Pat Cummins and Josh Hazlewood paid the price for retirement early, giving up 35-0 in the first four overs, while Sri Lanka's openers took long boundaries.

Agar broke Dhanushka Gunathilaka (17)'s erroneous stroke and smashed Guzal Mendis (27) to push Maxwell's sharp run-out to further the crowd.

The 23-year-old Pathum Nissanka showed his mettle again, anchoring his side innings with little support and scoring 46 before being stumped by Adam Zambia.

The final will be played in Melbourne on Sunday.