Home / 15,225.80-22,781.26-8,989.20

Finding the Fourth Proportional to 15,225.80, 22,781.26 and 8,989.20

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Solution

The fourth proportional to 15,225.80, 22,781.26 and 8,989.20 is: 13,449.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,225.80 : 22,781.26 = 8,989.20 : x
  2. Step 2: Convert to fraction form
    15,225.80/22,781.26 = 8,989.20/x
  3. Step 3: Cross multiply
    15,225.80x = 22,781.26 × 8,989.20
  4. Step 4: Simplify right side
    15,225.80x = 204,785,302.39
  5. Step 5: Solve for x
    x = 204,785,302.39/15,225.80
  6. Step 6: Final answer
    x = 13,449.89

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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.