Home / 8,385.11-12,581.25-2,839.04

Finding the Fourth Proportional to 8,385.11, 12,581.25 and 2,839.04

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Solution

The fourth proportional to 8,385.11, 12,581.25 and 2,839.04 is: 4,259.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,385.11 : 12,581.25 = 2,839.04 : x
  2. Step 2: Convert to fraction form
    8,385.11/12,581.25 = 2,839.04/x
  3. Step 3: Cross multiply
    8,385.11x = 12,581.25 × 2,839.04
  4. Step 4: Simplify right side
    8,385.11x = 35,718,609.09
  5. Step 5: Solve for x
    x = 35,718,609.09/8,385.11
  6. Step 6: Final answer
    x = 4,259.77

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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.