Posted by **colt** on Monday, February 15, 2010 at 6:05pm.

I need an answer to the analogy

fifteen:five::nine: ?

- 5th grade -
**Randi**, Monday, February 15, 2010 at 6:07pm
fifteen divided by five is three.

To complete the analogy, divide nine by three. (Your answer is three)

- 5th grade (math) -
**drwls**, Monday, February 15, 2010 at 6:26pm
If the "analogy" is to preserve ratios on both sides, then the answer is 3. If the analogy is to preserve the difference, the answer is -1.

This is not a good way to teach fifth grade math, or analogies, in my opinion. The problem would be better stated as

15/5 = 9/x

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