Home / 13,915.97-20,876.67-5,150.96

Finding the Fourth Proportional to 13,915.97, 20,876.67 and 5,150.96

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Solution

The fourth proportional to 13,915.97, 20,876.67 and 5,150.96 is: 7,727.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,915.97 : 20,876.67 = 5,150.96 : x
  2. Step 2: Convert to fraction form
    13,915.97/20,876.67 = 5,150.96/x
  3. Step 3: Cross multiply
    13,915.97x = 20,876.67 × 5,150.96
  4. Step 4: Simplify right side
    13,915.97x = 107,534,787.72
  5. Step 5: Solve for x
    x = 107,534,787.72/13,915.97
  6. Step 6: Final answer
    x = 7,727.44

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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.