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Finding the Fourth Proportional to 8,613.18, 12,919.84 and 2,373.54

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Solution

The fourth proportional to 8,613.18, 12,919.84 and 2,373.54 is: 3,560.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,613.18 : 12,919.84 = 2,373.54 : x
  2. Step 2: Convert to fraction form
    8,613.18/12,919.84 = 2,373.54/x
  3. Step 3: Cross multiply
    8,613.18x = 12,919.84 × 2,373.54
  4. Step 4: Simplify right side
    8,613.18x = 30,665,757.03
  5. Step 5: Solve for x
    x = 30,665,757.03/8,613.18
  6. Step 6: Final answer
    x = 3,560.33

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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.