Home / 13,489.30-20,225.17-5,589.64

Finding the Fourth Proportional to 13,489.30, 20,225.17 and 5,589.64

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Solution

The fourth proportional to 13,489.30, 20,225.17 and 5,589.64 is: 8,380.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,489.30 : 20,225.17 = 5,589.64 : x
  2. Step 2: Convert to fraction form
    13,489.30/20,225.17 = 5,589.64/x
  3. Step 3: Cross multiply
    13,489.30x = 20,225.17 × 5,589.64
  4. Step 4: Simplify right side
    13,489.30x = 113,051,290.16
  5. Step 5: Solve for x
    x = 113,051,290.16/13,489.30
  6. Step 6: Final answer
    x = 8,380.82

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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.