Home / 8,519.41-12,778.17-2,280.07

Finding the Fourth Proportional to 8,519.41, 12,778.17 and 2,280.07

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Solution

The fourth proportional to 8,519.41, 12,778.17 and 2,280.07 is: 3,419.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,519.41 : 12,778.17 = 2,280.07 : x
  2. Step 2: Convert to fraction form
    8,519.41/12,778.17 = 2,280.07/x
  3. Step 3: Cross multiply
    8,519.41x = 12,778.17 × 2,280.07
  4. Step 4: Simplify right side
    8,519.41x = 29,135,122.07
  5. Step 5: Solve for x
    x = 29,135,122.07/8,519.41
  6. Step 6: Final answer
    x = 3,419.85

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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.