Home / 18,239.43-27,371.45-7,144.73

Finding the Fourth Proportional to 18,239.43, 27,371.45 and 7,144.73

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Solution

The fourth proportional to 18,239.43, 27,371.45 and 7,144.73 is: 10,721.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,239.43 : 27,371.45 = 7,144.73 : x
  2. Step 2: Convert to fraction form
    18,239.43/27,371.45 = 7,144.73/x
  3. Step 3: Cross multiply
    18,239.43x = 27,371.45 × 7,144.73
  4. Step 4: Simplify right side
    18,239.43x = 195,561,447.38
  5. Step 5: Solve for x
    x = 195,561,447.38/18,239.43
  6. Step 6: Final answer
    x = 10,721.91

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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.