Home / 9,691.28-14,536.61-2,765.78

Finding the Fourth Proportional to 9,691.28, 14,536.61 and 2,765.78

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Solution

The fourth proportional to 9,691.28, 14,536.61 and 2,765.78 is: 4,148.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,691.28 : 14,536.61 = 2,765.78 : x
  2. Step 2: Convert to fraction form
    9,691.28/14,536.61 = 2,765.78/x
  3. Step 3: Cross multiply
    9,691.28x = 14,536.61 × 2,765.78
  4. Step 4: Simplify right side
    9,691.28x = 40,204,978.69
  5. Step 5: Solve for x
    x = 40,204,978.69/9,691.28
  6. Step 6: Final answer
    x = 4,148.57

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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.