Home / 18,399.30-27,577.35-8,517.71

Finding the Fourth Proportional to 18,399.30, 27,577.35 and 8,517.71

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Solution

The fourth proportional to 18,399.30, 27,577.35 and 8,517.71 is: 12,766.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,399.30 : 27,577.35 = 8,517.71 : x
  2. Step 2: Convert to fraction form
    18,399.30/27,577.35 = 8,517.71/x
  3. Step 3: Cross multiply
    18,399.30x = 27,577.35 × 8,517.71
  4. Step 4: Simplify right side
    18,399.30x = 234,895,869.87
  5. Step 5: Solve for x
    x = 234,895,869.87/18,399.30
  6. Step 6: Final answer
    x = 12,766.57

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1.5x scale

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.