Home / 13,542.48-20,311.66-5,221.29

Finding the Fourth Proportional to 13,542.48, 20,311.66 and 5,221.29

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Solution

The fourth proportional to 13,542.48, 20,311.66 and 5,221.29 is: 7,831.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,542.48 : 20,311.66 = 5,221.29 : x
  2. Step 2: Convert to fraction form
    13,542.48/20,311.66 = 5,221.29/x
  3. Step 3: Cross multiply
    13,542.48x = 20,311.66 × 5,221.29
  4. Step 4: Simplify right side
    13,542.48x = 106,053,067.24
  5. Step 5: Solve for x
    x = 106,053,067.24/13,542.48
  6. Step 6: Final answer
    x = 7,831.14

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1.5x scale

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.