Finding the Third Proportional to 10,128.16 and 15,331.99
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Solution
The third proportional to 10,128.16 and 15,331.99 is: 23,209.54
Step by Step Solution
- Step 1: Write the proportion equation
10,128.16 : 15,331.99 = 15,331.99 : x - Step 2: Convert to fraction form
10,128.16/15,331.99 = 15,331.99/x - Step 3: Cross multiply
10,128.16x = 15,331.99 × 15,331.99 - Step 4: Simplify right side
10,128.16x = 235,069,984.44 - Step 5: Solve for x
x = 235,069,984.44/10,128.16 - Step 6: Final answer
x = 23,209.54
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.