Home / 13,489.12-20,233.92-4,129.44

Finding the Fourth Proportional to 13,489.12, 20,233.92 and 4,129.44

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Solution

The fourth proportional to 13,489.12, 20,233.92 and 4,129.44 is: 6,194.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,489.12 : 20,233.92 = 4,129.44 : x
  2. Step 2: Convert to fraction form
    13,489.12/20,233.92 = 4,129.44/x
  3. Step 3: Cross multiply
    13,489.12x = 20,233.92 × 4,129.44
  4. Step 4: Simplify right side
    13,489.12x = 83,554,758.60
  5. Step 5: Solve for x
    x = 83,554,758.60/13,489.12
  6. Step 6: Final answer
    x = 6,194.23

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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.