Home / 10,982.25-15,156.32-6,791.31

Finding the Fourth Proportional to 10,982.25, 15,156.32 and 6,791.31

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Solution

The fourth proportional to 10,982.25, 15,156.32 and 6,791.31 is: 9,372.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,982.25 : 15,156.32 = 6,791.31 : x
  2. Step 2: Convert to fraction form
    10,982.25/15,156.32 = 6,791.31/x
  3. Step 3: Cross multiply
    10,982.25x = 15,156.32 × 6,791.31
  4. Step 4: Simplify right side
    10,982.25x = 102,931,233.62
  5. Step 5: Solve for x
    x = 102,931,233.62/10,982.25
  6. Step 6: Final answer
    x = 9,372.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.