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Finding the Fourth Proportional to 18,176.85, 27,265.34 and 9,860.78

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Solution

The fourth proportional to 18,176.85, 27,265.34 and 9,860.78 is: 14,791.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,176.85 : 27,265.34 = 9,860.78 : x
  2. Step 2: Convert to fraction form
    18,176.85/27,265.34 = 9,860.78/x
  3. Step 3: Cross multiply
    18,176.85x = 27,265.34 × 9,860.78
  4. Step 4: Simplify right side
    18,176.85x = 268,857,612.18
  5. Step 5: Solve for x
    x = 268,857,612.18/18,176.85
  6. Step 6: Final answer
    x = 14,791.21

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.