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Finding the Fourth Proportional to 8,331.52, 12,472.98 and 7,217.50

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Solution

The fourth proportional to 8,331.52, 12,472.98 and 7,217.50 is: 10,805.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,331.52 : 12,472.98 = 7,217.50 : x
  2. Step 2: Convert to fraction form
    8,331.52/12,472.98 = 7,217.50/x
  3. Step 3: Cross multiply
    8,331.52x = 12,472.98 × 7,217.50
  4. Step 4: Simplify right side
    8,331.52x = 90,023,733.15
  5. Step 5: Solve for x
    x = 90,023,733.15/8,331.52
  6. Step 6: Final answer
    x = 10,805.20

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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.