Home / 13,876.32-20,787.60-12,324.96

Finding the Fourth Proportional to 13,876.32, 20,787.60 and 12,324.96

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Solution

The fourth proportional to 13,876.32, 20,787.60 and 12,324.96 is: 18,463.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,876.32 : 20,787.60 = 12,324.96 : x
  2. Step 2: Convert to fraction form
    13,876.32/20,787.60 = 12,324.96/x
  3. Step 3: Cross multiply
    13,876.32x = 20,787.60 × 12,324.96
  4. Step 4: Simplify right side
    13,876.32x = 256,206,338.50
  5. Step 5: Solve for x
    x = 256,206,338.50/13,876.32
  6. Step 6: Final answer
    x = 18,463.57

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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.