Home / 18,086.82-27,129.97-10,972.75

Finding the Fourth Proportional to 18,086.82, 27,129.97 and 10,972.75

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Solution

The fourth proportional to 18,086.82, 27,129.97 and 10,972.75 is: 16,458.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,086.82 : 27,129.97 = 10,972.75 : x
  2. Step 2: Convert to fraction form
    18,086.82/27,129.97 = 10,972.75/x
  3. Step 3: Cross multiply
    18,086.82x = 27,129.97 × 10,972.75
  4. Step 4: Simplify right side
    18,086.82x = 297,690,425.95
  5. Step 5: Solve for x
    x = 297,690,425.95/18,086.82
  6. Step 6: Final answer
    x = 16,458.97

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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.