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Finding the Fourth Proportional to 8,332.67, 12,487.90 and 4,109.47

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Solution

The fourth proportional to 8,332.67, 12,487.90 and 4,109.47 is: 6,158.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,332.67 : 12,487.90 = 4,109.47 : x
  2. Step 2: Convert to fraction form
    8,332.67/12,487.90 = 4,109.47/x
  3. Step 3: Cross multiply
    8,332.67x = 12,487.90 × 4,109.47
  4. Step 4: Simplify right side
    8,332.67x = 51,318,624.33
  5. Step 5: Solve for x
    x = 51,318,624.33/8,332.67
  6. Step 6: Final answer
    x = 6,158.72

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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.