Question 156862
We have the follow ratio:


<pre>


number of gallons of pool # 1       number of gallons of pool # 2
---------------------------    =   -------------------------------
    depth of pool # 1                     depth of pool # 2



</pre>



{{{10000/6=12500/x}}} Plug in the given information



{{{(10000/6)*x=12500}}} Multiply both sides by x



{{{10000*x=12500*6}}} Multiply both sides by 6



{{{10000*x=75000}}} Multiply



{{{x=75000/10000}}} Divide both sides by 10000



{{{x=7.5}}} Divide 



So a pool that is 7.5 feet deep will hold 12,500 gallons of water