Home / 18,281.11-27,418.19-8,911.71

Finding the Fourth Proportional to 18,281.11, 27,418.19 and 8,911.71

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Solution

The fourth proportional to 18,281.11, 27,418.19 and 8,911.71 is: 13,365.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,281.11 : 27,418.19 = 8,911.71 : x
  2. Step 2: Convert to fraction form
    18,281.11/27,418.19 = 8,911.71/x
  3. Step 3: Cross multiply
    18,281.11x = 27,418.19 × 8,911.71
  4. Step 4: Simplify right side
    18,281.11x = 244,342,958.00
  5. Step 5: Solve for x
    x = 244,342,958.00/18,281.11
  6. Step 6: Final answer
    x = 13,365.87

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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.