6/9 = 9/12 holds proportionality. Then the correct option is D.
What are ratio and proportion?
A ratio is a collection of ordered integers a and b represented as a/b, with b never equaling zero. A proportionate expression is one in which two items are equal.
We know that if proportionality exists there, then both sides have the same numbers.
Chech all options, then we have
A. 8/10 = 6/8
Simplify the equation, then we have
64 ≠ 60
Then it is incorrect.
B. 3/4 = 12/15
Simplify the equation, then we have
45 ≠ 36
Then it is incorrect.
C. 4/6 = 9/12
Simplify the equation, then we have
48 ≠ 54
Then it is incorrect.
D. 6/9 = 8/12
Simplify the equation, then we have
72 = 72
Then it is correct.
Then the correct option is D.
More about the ratio and the proportion link is given below.
https://brainly.com/question/14335762
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