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Finding the Fourth Proportional to 8,167.76, 12,253.47 and 2,621.43

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Solution

The fourth proportional to 8,167.76, 12,253.47 and 2,621.43 is: 3,932.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,167.76 : 12,253.47 = 2,621.43 : x
  2. Step 2: Convert to fraction form
    8,167.76/12,253.47 = 2,621.43/x
  3. Step 3: Cross multiply
    8,167.76x = 12,253.47 × 2,621.43
  4. Step 4: Simplify right side
    8,167.76x = 32,121,613.86
  5. Step 5: Solve for x
    x = 32,121,613.86/8,167.76
  6. Step 6: Final answer
    x = 3,932.73

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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.