Home / 11,229.98-16,845-3,438.76

Finding the Fourth Proportional to 11,229.98, 16,845 and 3,438.76

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Solution

The fourth proportional to 11,229.98, 16,845 and 3,438.76 is: 5,158.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,229.98 : 16,845 = 3,438.76 : x
  2. Step 2: Convert to fraction form
    11,229.98/16,845 = 3,438.76/x
  3. Step 3: Cross multiply
    11,229.98x = 16,845 × 3,438.76
  4. Step 4: Simplify right side
    11,229.98x = 57,925,912.20
  5. Step 5: Solve for x
    x = 57,925,912.20/11,229.98
  6. Step 6: Final answer
    x = 5,158.15

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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.