Home / 10,932.90-15,086.91-6,691.02

Finding the Fourth Proportional to 10,932.90, 15,086.91 and 6,691.02

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Solution

The fourth proportional to 10,932.90, 15,086.91 and 6,691.02 is: 9,233.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,932.90 : 15,086.91 = 6,691.02 : x
  2. Step 2: Convert to fraction form
    10,932.90/15,086.91 = 6,691.02/x
  3. Step 3: Cross multiply
    10,932.90x = 15,086.91 × 6,691.02
  4. Step 4: Simplify right side
    10,932.90x = 100,946,816.55
  5. Step 5: Solve for x
    x = 100,946,816.55/10,932.90
  6. Step 6: Final answer
    x = 9,233.31

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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.