SOLUTION: How do I determine if the quantity of each pair of ratios are porportional in 9/5 = 27/15. My email address is lavernec3@yahoo.com and I am helping my 11 year old son with his home

Question 544858: How do I determine if the quantity of each pair of ratios are porportional in 9/5 = 27/15. My email address is lavernec3@yahoo.com and I am helping my 11 year old son with his home work.
Found 2 solutions by saifoo.khan, ankor@dixie-net.com:
Answer by saifoo.khan(162) (Show Source): You can put this solution on YOUR website!
How do I determine if the quantity of each pair of ratios are porportional in 9/5 = 27/15.
9 27
- = -
5 15
take any two horizontal values,
9 and 27 / 5and 15
divide the large with small one.
27/9 = 3
or
15/5 = 3

So the ratio is;
1 : 3
Hope u got your answer.
If u need more help, email me thanks.
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
One way is just cross multiply
=
9*15 = 5*27
135 = 135, equal, they are the same proportion
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