Home / 8,149.86-12,217.28-2,881.04

Finding the Fourth Proportional to 8,149.86, 12,217.28 and 2,881.04

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Solution

The fourth proportional to 8,149.86, 12,217.28 and 2,881.04 is: 4,318.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,149.86 : 12,217.28 = 2,881.04 : x
  2. Step 2: Convert to fraction form
    8,149.86/12,217.28 = 2,881.04/x
  3. Step 3: Cross multiply
    8,149.86x = 12,217.28 × 2,881.04
  4. Step 4: Simplify right side
    8,149.86x = 35,198,396.88
  5. Step 5: Solve for x
    x = 35,198,396.88/8,149.86
  6. Step 6: Final answer
    x = 4,318.90

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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.