Home / 12,617.73-18,915.66-6,372.54

Finding the Fourth Proportional to 12,617.73, 18,915.66 and 6,372.54

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Solution

The fourth proportional to 12,617.73, 18,915.66 and 6,372.54 is: 9,553.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,617.73 : 18,915.66 = 6,372.54 : x
  2. Step 2: Convert to fraction form
    12,617.73/18,915.66 = 6,372.54/x
  3. Step 3: Cross multiply
    12,617.73x = 18,915.66 × 6,372.54
  4. Step 4: Simplify right side
    12,617.73x = 120,540,799.98
  5. Step 5: Solve for x
    x = 120,540,799.98/12,617.73
  6. Step 6: Final answer
    x = 9,553.29

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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.