Home / 8,872.18-13,311.36-3,945.28

Finding the Fourth Proportional to 8,872.18, 13,311.36 and 3,945.28

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Solution

The fourth proportional to 8,872.18, 13,311.36 and 3,945.28 is: 5,919.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,872.18 : 13,311.36 = 3,945.28 : x
  2. Step 2: Convert to fraction form
    8,872.18/13,311.36 = 3,945.28/x
  3. Step 3: Cross multiply
    8,872.18x = 13,311.36 × 3,945.28
  4. Step 4: Simplify right side
    8,872.18x = 52,517,042.38
  5. Step 5: Solve for x
    x = 52,517,042.38/8,872.18
  6. Step 6: Final answer
    x = 5,919.29

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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.