Home / 15,543.28-23,306.82-8,129.80

Finding the Fourth Proportional to 15,543.28, 23,306.82 and 8,129.80

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Solution

The fourth proportional to 15,543.28, 23,306.82 and 8,129.80 is: 12,190.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,543.28 : 23,306.82 = 8,129.80 : x
  2. Step 2: Convert to fraction form
    15,543.28/23,306.82 = 8,129.80/x
  3. Step 3: Cross multiply
    15,543.28x = 23,306.82 × 8,129.80
  4. Step 4: Simplify right side
    15,543.28x = 189,479,785.24
  5. Step 5: Solve for x
    x = 189,479,785.24/15,543.28
  6. Step 6: Final answer
    x = 12,190.46

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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.