6 is to 15 as 36 is to
90. This is because 6/15 simplifies to 2/5, and 36/90 also simplifies to 2/5.
To find the missing term, we can set up a proportion using the given information.
Using the pattern "6 is to 15" can be written as 6/15, we can find the equivalent fraction for the missing term.
Let's call the missing term "x". We can set up the proportion as follows:
6/15 = 36/x
To solve for x, we can cross-multiply:
6 * x = 15 * 36
x = (15 * 36) / 6
x = 540 / 6
x = 90
Therefore, 6 is to 15 as 36 is to 90.