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Finding the Fourth Proportional to 18,538.73, 27,807.87 and 4,498.88

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Solution

The fourth proportional to 18,538.73, 27,807.87 and 4,498.88 is: 6,748.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,538.73 : 27,807.87 = 4,498.88 : x
  2. Step 2: Convert to fraction form
    18,538.73/27,807.87 = 4,498.88/x
  3. Step 3: Cross multiply
    18,538.73x = 27,807.87 × 4,498.88
  4. Step 4: Simplify right side
    18,538.73x = 125,104,110.06
  5. Step 5: Solve for x
    x = 125,104,110.06/18,538.73
  6. Step 6: Final answer
    x = 6,748.26

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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.