Home / 10,172.59-15,274.22-8,306.80

Finding the Fourth Proportional to 10,172.59, 15,274.22 and 8,306.80

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Solution

The fourth proportional to 10,172.59, 15,274.22 and 8,306.80 is: 12,472.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,172.59 : 15,274.22 = 8,306.80 : x
  2. Step 2: Convert to fraction form
    10,172.59/15,274.22 = 8,306.80/x
  3. Step 3: Cross multiply
    10,172.59x = 15,274.22 × 8,306.80
  4. Step 4: Simplify right side
    10,172.59x = 126,879,943.62
  5. Step 5: Solve for x
    x = 126,879,943.62/10,172.59
  6. Step 6: Final answer
    x = 12,472.73

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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.