Home / 8,691.12-13,037.20-2,451.66

Finding the Fourth Proportional to 8,691.12, 13,037.20 and 2,451.66

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Solution

The fourth proportional to 8,691.12, 13,037.20 and 2,451.66 is: 3,677.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,691.12 : 13,037.20 = 2,451.66 : x
  2. Step 2: Convert to fraction form
    8,691.12/13,037.20 = 2,451.66/x
  3. Step 3: Cross multiply
    8,691.12x = 13,037.20 × 2,451.66
  4. Step 4: Simplify right side
    8,691.12x = 31,962,769.49
  5. Step 5: Solve for x
    x = 31,962,769.49/8,691.12
  6. Step 6: Final answer
    x = 3,677.64

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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.