Approval rule should not trigger until the previous rule related users approve the invoice

Scenario:

1)Invoice amount < = 10000 it should go for an Approval group consisting of 3 members

2)Invoice amount between 10000 to 15000 it should go for approval to Approval group 1 - Consisting of 3 users. Once one of them approves then it should trigger another rule consisting of another 3 members Until then the other levels should not be assigned to approve.