Home / 8,458.11-12,687.77-2,613.96

Finding the Fourth Proportional to 8,458.11, 12,687.77 and 2,613.96

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Solution

The fourth proportional to 8,458.11, 12,687.77 and 2,613.96 is: 3,921.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,458.11 : 12,687.77 = 2,613.96 : x
  2. Step 2: Convert to fraction form
    8,458.11/12,687.77 = 2,613.96/x
  3. Step 3: Cross multiply
    8,458.11x = 12,687.77 × 2,613.96
  4. Step 4: Simplify right side
    8,458.11x = 33,165,329.80
  5. Step 5: Solve for x
    x = 33,165,329.80/8,458.11
  6. Step 6: Final answer
    x = 3,921.13

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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.