Home / 10,831.46-16,241.12-3,434.54

Finding the Fourth Proportional to 10,831.46, 16,241.12 and 3,434.54

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Solution

The fourth proportional to 10,831.46, 16,241.12 and 3,434.54 is: 5,149.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,831.46 : 16,241.12 = 3,434.54 : x
  2. Step 2: Convert to fraction form
    10,831.46/16,241.12 = 3,434.54/x
  3. Step 3: Cross multiply
    10,831.46x = 16,241.12 × 3,434.54
  4. Step 4: Simplify right side
    10,831.46x = 55,780,759.11
  5. Step 5: Solve for x
    x = 55,780,759.11/10,831.46
  6. Step 6: Final answer
    x = 5,149.88

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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.