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Finding the Fourth Proportional to 18,542.88, 27,817.20 and 6,228

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Solution

The fourth proportional to 18,542.88, 27,817.20 and 6,228 is: 9,342.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,542.88 : 27,817.20 = 6,228 : x
  2. Step 2: Convert to fraction form
    18,542.88/27,817.20 = 6,228/x
  3. Step 3: Cross multiply
    18,542.88x = 27,817.20 × 6,228
  4. Step 4: Simplify right side
    18,542.88x = 173,245,521.60
  5. Step 5: Solve for x
    x = 173,245,521.60/18,542.88
  6. Step 6: Final answer
    x = 9,342.97

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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.