Home / 9,141.22-13,711.92-3,874.78

Finding the Fourth Proportional to 9,141.22, 13,711.92 and 3,874.78

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Solution

The fourth proportional to 9,141.22, 13,711.92 and 3,874.78 is: 5,812.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,141.22 : 13,711.92 = 3,874.78 : x
  2. Step 2: Convert to fraction form
    9,141.22/13,711.92 = 3,874.78/x
  3. Step 3: Cross multiply
    9,141.22x = 13,711.92 × 3,874.78
  4. Step 4: Simplify right side
    9,141.22x = 53,130,673.38
  5. Step 5: Solve for x
    x = 53,130,673.38/9,141.22
  6. Step 6: Final answer
    x = 5,812.21

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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.