Home / 18,589.50-25,654.88-11,517.29

Finding the Fourth Proportional to 18,589.50, 25,654.88 and 11,517.29

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Solution

The fourth proportional to 18,589.50, 25,654.88 and 11,517.29 is: 15,894.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,589.50 : 25,654.88 = 11,517.29 : x
  2. Step 2: Convert to fraction form
    18,589.50/25,654.88 = 11,517.29/x
  3. Step 3: Cross multiply
    18,589.50x = 25,654.88 × 11,517.29
  4. Step 4: Simplify right side
    18,589.50x = 295,474,624.82
  5. Step 5: Solve for x
    x = 295,474,624.82/18,589.50
  6. Step 6: Final answer
    x = 15,894.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.