Home / 10,251.89-15,380.25-3,326.39

Finding the Fourth Proportional to 10,251.89, 15,380.25 and 3,326.39

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Solution

The fourth proportional to 10,251.89, 15,380.25 and 3,326.39 is: 4,990.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,251.89 : 15,380.25 = 3,326.39 : x
  2. Step 2: Convert to fraction form
    10,251.89/15,380.25 = 3,326.39/x
  3. Step 3: Cross multiply
    10,251.89x = 15,380.25 × 3,326.39
  4. Step 4: Simplify right side
    10,251.89x = 51,160,709.80
  5. Step 5: Solve for x
    x = 51,160,709.80/10,251.89
  6. Step 6: Final answer
    x = 4,990.37

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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.