Home / 10,520.60-15,753.92-10,209.16

Finding the Fourth Proportional to 10,520.60, 15,753.92 and 10,209.16

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Solution

The fourth proportional to 10,520.60, 15,753.92 and 10,209.16 is: 15,287.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,520.60 : 15,753.92 = 10,209.16 : x
  2. Step 2: Convert to fraction form
    10,520.60/15,753.92 = 10,209.16/x
  3. Step 3: Cross multiply
    10,520.60x = 15,753.92 × 10,209.16
  4. Step 4: Simplify right side
    10,520.60x = 160,834,289.91
  5. Step 5: Solve for x
    x = 160,834,289.91/10,520.60
  6. Step 6: Final answer
    x = 15,287.56

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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.