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Finding the Fourth Proportional to 18,610.58, 27,922.35 and 8,757.38

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Solution

The fourth proportional to 18,610.58, 27,922.35 and 8,757.38 is: 13,139.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,610.58 : 27,922.35 = 8,757.38 : x
  2. Step 2: Convert to fraction form
    18,610.58/27,922.35 = 8,757.38/x
  3. Step 3: Cross multiply
    18,610.58x = 27,922.35 × 8,757.38
  4. Step 4: Simplify right side
    18,610.58x = 244,526,629.44
  5. Step 5: Solve for x
    x = 244,526,629.44/18,610.58
  6. Step 6: Final answer
    x = 13,139.12

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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.