Home / 8,256.12-12,385.39-3,874.02

Finding the Fourth Proportional to 8,256.12, 12,385.39 and 3,874.02

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Solution

The fourth proportional to 8,256.12, 12,385.39 and 3,874.02 is: 5,811.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,256.12 : 12,385.39 = 3,874.02 : x
  2. Step 2: Convert to fraction form
    8,256.12/12,385.39 = 3,874.02/x
  3. Step 3: Cross multiply
    8,256.12x = 12,385.39 × 3,874.02
  4. Step 4: Simplify right side
    8,256.12x = 47,981,248.57
  5. Step 5: Solve for x
    x = 47,981,248.57/8,256.12
  6. Step 6: Final answer
    x = 5,811.60

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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.