Finding the Fourth Proportional to 10,131.84, 15,207.36 and 5,518.08
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Solution
The fourth proportional to 10,131.84, 15,207.36 and 5,518.08 is: 8,282.35
Step by Step Solution
- Step 1: Write the proportion equation
10,131.84 : 15,207.36 = 5,518.08 : x - Step 2: Convert to fraction form
10,131.84/15,207.36 = 5,518.08/x - Step 3: Cross multiply
10,131.84x = 15,207.36 × 5,518.08 - Step 4: Simplify right side
10,131.84x = 83,915,429.07 - Step 5: Solve for x
x = 83,915,429.07/10,131.84 - Step 6: Final answer
x = 8,282.35
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.