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Finding the Fourth Proportional to 8,318.34, 12,475.08 and 3,934.62

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Solution

The fourth proportional to 8,318.34, 12,475.08 and 3,934.62 is: 5,900.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,318.34 : 12,475.08 = 3,934.62 : x
  2. Step 2: Convert to fraction form
    8,318.34/12,475.08 = 3,934.62/x
  3. Step 3: Cross multiply
    8,318.34x = 12,475.08 × 3,934.62
  4. Step 4: Simplify right side
    8,318.34x = 49,084,699.27
  5. Step 5: Solve for x
    x = 49,084,699.27/8,318.34
  6. Step 6: Final answer
    x = 5,900.78

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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.