Home / 18,517.52-27,767.64-10,728.56

Finding the Fourth Proportional to 18,517.52, 27,767.64 and 10,728.56

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Solution

The fourth proportional to 18,517.52, 27,767.64 and 10,728.56 is: 16,087.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,517.52 : 27,767.64 = 10,728.56 : x
  2. Step 2: Convert to fraction form
    18,517.52/27,767.64 = 10,728.56/x
  3. Step 3: Cross multiply
    18,517.52x = 27,767.64 × 10,728.56
  4. Step 4: Simplify right side
    18,517.52x = 297,906,791.80
  5. Step 5: Solve for x
    x = 297,906,791.80/18,517.52
  6. Step 6: Final answer
    x = 16,087.83

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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.