Home / 15,916.32-23,874.60-5,520.78

Finding the Fourth Proportional to 15,916.32, 23,874.60 and 5,520.78

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Solution

The fourth proportional to 15,916.32, 23,874.60 and 5,520.78 is: 8,281.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,916.32 : 23,874.60 = 5,520.78 : x
  2. Step 2: Convert to fraction form
    15,916.32/23,874.60 = 5,520.78/x
  3. Step 3: Cross multiply
    15,916.32x = 23,874.60 × 5,520.78
  4. Step 4: Simplify right side
    15,916.32x = 131,806,414.19
  5. Step 5: Solve for x
    x = 131,806,414.19/15,916.32
  6. Step 6: Final answer
    x = 8,281.21

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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.