Home / 8,102.86-12,136.66-3,934.10

Finding the Fourth Proportional to 8,102.86, 12,136.66 and 3,934.10

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Solution

The fourth proportional to 8,102.86, 12,136.66 and 3,934.10 is: 5,892.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,102.86 : 12,136.66 = 3,934.10 : x
  2. Step 2: Convert to fraction form
    8,102.86/12,136.66 = 3,934.10/x
  3. Step 3: Cross multiply
    8,102.86x = 12,136.66 × 3,934.10
  4. Step 4: Simplify right side
    8,102.86x = 47,746,854.61
  5. Step 5: Solve for x
    x = 47,746,854.61/8,102.86
  6. Step 6: Final answer
    x = 5,892.59

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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.