Home / 11,480.40-17,221.68-4,554

Finding the Fourth Proportional to 11,480.40, 17,221.68 and 4,554

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Solution

The fourth proportional to 11,480.40, 17,221.68 and 4,554 is: 6,831.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,480.40 : 17,221.68 = 4,554 : x
  2. Step 2: Convert to fraction form
    11,480.40/17,221.68 = 4,554/x
  3. Step 3: Cross multiply
    11,480.40x = 17,221.68 × 4,554
  4. Step 4: Simplify right side
    11,480.40x = 78,427,530.72
  5. Step 5: Solve for x
    x = 78,427,530.72/11,480.40
  6. Step 6: Final answer
    x = 6,831.43

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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.