Home / 18,494-27,747.98-11,103.60

Finding the Fourth Proportional to 18,494, 27,747.98 and 11,103.60

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Solution

The fourth proportional to 18,494, 27,747.98 and 11,103.60 is: 16,659.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,494 : 27,747.98 = 11,103.60 : x
  2. Step 2: Convert to fraction form
    18,494/27,747.98 = 11,103.60/x
  3. Step 3: Cross multiply
    18,494x = 27,747.98 × 11,103.60
  4. Step 4: Simplify right side
    18,494x = 308,102,470.73
  5. Step 5: Solve for x
    x = 308,102,470.73/18,494
  6. Step 6: Final answer
    x = 16,659.59

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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.