Home / 11,729.22-17,591.96-3,831.66

Finding the Fourth Proportional to 11,729.22, 17,591.96 and 3,831.66

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Solution

The fourth proportional to 11,729.22, 17,591.96 and 3,831.66 is: 5,746.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,729.22 : 17,591.96 = 3,831.66 : x
  2. Step 2: Convert to fraction form
    11,729.22/17,591.96 = 3,831.66/x
  3. Step 3: Cross multiply
    11,729.22x = 17,591.96 × 3,831.66
  4. Step 4: Simplify right side
    11,729.22x = 67,406,390.30
  5. Step 5: Solve for x
    x = 67,406,390.30/11,729.22
  6. Step 6: Final answer
    x = 5,746.88

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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.