Home / 18,111.52-27,177.09-7,582.47

Finding the Fourth Proportional to 18,111.52, 27,177.09 and 7,582.47

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Solution

The fourth proportional to 18,111.52, 27,177.09 and 7,582.47 is: 11,377.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,111.52 : 27,177.09 = 7,582.47 : x
  2. Step 2: Convert to fraction form
    18,111.52/27,177.09 = 7,582.47/x
  3. Step 3: Cross multiply
    18,111.52x = 27,177.09 × 7,582.47
  4. Step 4: Simplify right side
    18,111.52x = 206,069,469.61
  5. Step 5: Solve for x
    x = 206,069,469.61/18,111.52
  6. Step 6: Final answer
    x = 11,377.81

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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.