Home / 7,912.29-11,868.40-3,234.49

Finding the Fourth Proportional to 7,912.29, 11,868.40 and 3,234.49

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Solution

The fourth proportional to 7,912.29, 11,868.40 and 3,234.49 is: 4,851.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,912.29 : 11,868.40 = 3,234.49 : x
  2. Step 2: Convert to fraction form
    7,912.29/11,868.40 = 3,234.49/x
  3. Step 3: Cross multiply
    7,912.29x = 11,868.40 × 3,234.49
  4. Step 4: Simplify right side
    7,912.29x = 38,388,221.12
  5. Step 5: Solve for x
    x = 38,388,221.12/7,912.29
  6. Step 6: Final answer
    x = 4,851.72

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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.