Home / 18,464.91-27,711.90-6,781.47

Finding the Fourth Proportional to 18,464.91, 27,711.90 and 6,781.47

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Solution

The fourth proportional to 18,464.91, 27,711.90 and 6,781.47 is: 10,177.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,464.91 : 27,711.90 = 6,781.47 : x
  2. Step 2: Convert to fraction form
    18,464.91/27,711.90 = 6,781.47/x
  3. Step 3: Cross multiply
    18,464.91x = 27,711.90 × 6,781.47
  4. Step 4: Simplify right side
    18,464.91x = 187,927,418.49
  5. Step 5: Solve for x
    x = 187,927,418.49/18,464.91
  6. Step 6: Final answer
    x = 10,177.54

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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.