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Finding the Fourth Proportional to 8,532.08, 12,781.08 and 5,251.56

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Solution

The fourth proportional to 8,532.08, 12,781.08 and 5,251.56 is: 7,866.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,532.08 : 12,781.08 = 5,251.56 : x
  2. Step 2: Convert to fraction form
    8,532.08/12,781.08 = 5,251.56/x
  3. Step 3: Cross multiply
    8,532.08x = 12,781.08 × 5,251.56
  4. Step 4: Simplify right side
    8,532.08x = 67,120,608.48
  5. Step 5: Solve for x
    x = 67,120,608.48/8,532.08
  6. Step 6: Final answer
    x = 7,866.85

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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.