Home / 8,073.76-12,084.56-4,172.80

Finding the Fourth Proportional to 8,073.76, 12,084.56 and 4,172.80

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Solution

The fourth proportional to 8,073.76, 12,084.56 and 4,172.80 is: 6,245.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,073.76 : 12,084.56 = 4,172.80 : x
  2. Step 2: Convert to fraction form
    8,073.76/12,084.56 = 4,172.80/x
  3. Step 3: Cross multiply
    8,073.76x = 12,084.56 × 4,172.80
  4. Step 4: Simplify right side
    8,073.76x = 50,426,451.97
  5. Step 5: Solve for x
    x = 50,426,451.97/8,073.76
  6. Step 6: Final answer
    x = 6,245.72

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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.