Home / 14,915.10-22,372.65-7,139.10

Finding the Fourth Proportional to 14,915.10, 22,372.65 and 7,139.10

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Solution

The fourth proportional to 14,915.10, 22,372.65 and 7,139.10 is: 10,708.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,915.10 : 22,372.65 = 7,139.10 : x
  2. Step 2: Convert to fraction form
    14,915.10/22,372.65 = 7,139.10/x
  3. Step 3: Cross multiply
    14,915.10x = 22,372.65 × 7,139.10
  4. Step 4: Simplify right side
    14,915.10x = 159,720,585.62
  5. Step 5: Solve for x
    x = 159,720,585.62/14,915.10
  6. Step 6: Final answer
    x = 10,708.65

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Similar ratio
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1.5x scale

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.