Home / 10,331.82-15,495.30-4,781.70

Finding the Fourth Proportional to 10,331.82, 15,495.30 and 4,781.70

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Solution

The fourth proportional to 10,331.82, 15,495.30 and 4,781.70 is: 7,171.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,331.82 : 15,495.30 = 4,781.70 : x
  2. Step 2: Convert to fraction form
    10,331.82/15,495.30 = 4,781.70/x
  3. Step 3: Cross multiply
    10,331.82x = 15,495.30 × 4,781.70
  4. Step 4: Simplify right side
    10,331.82x = 74,093,876.01
  5. Step 5: Solve for x
    x = 74,093,876.01/10,331.82
  6. Step 6: Final answer
    x = 7,171.43

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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.