Question 1103381
Compounded quarterly —>  interest rate must be divided by 4.

The future value F is:  
{{{ F = 6000*(1+0.09/4)^(7*4) }}}
{{{matrix(1,4, "F", " = ", "$", 11187.27) }}} 

You can sanity check future value problems by using the "rule of 72":  it takes roughly '72 divided by the annual interest rate' years for money to double.   Here the amount almost doubled in 7 years, and we'd expect it to double in about 72/9 = 8 years,  so it passes the sanity check.