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Finding the Fourth Proportional to 8,318.91, 12,480.50 and 2,475.53

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Solution

The fourth proportional to 8,318.91, 12,480.50 and 2,475.53 is: 3,713.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,318.91 : 12,480.50 = 2,475.53 : x
  2. Step 2: Convert to fraction form
    8,318.91/12,480.50 = 2,475.53/x
  3. Step 3: Cross multiply
    8,318.91x = 12,480.50 × 2,475.53
  4. Step 4: Simplify right side
    8,318.91x = 30,895,777.38
  5. Step 5: Solve for x
    x = 30,895,777.38/8,318.91
  6. Step 6: Final answer
    x = 3,713.92

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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.