Home / 8,151.97-12,220.94-3,467.69

Finding the Fourth Proportional to 8,151.97, 12,220.94 and 3,467.69

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Solution

The fourth proportional to 8,151.97, 12,220.94 and 3,467.69 is: 5,198.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,151.97 : 12,220.94 = 3,467.69 : x
  2. Step 2: Convert to fraction form
    8,151.97/12,220.94 = 3,467.69/x
  3. Step 3: Cross multiply
    8,151.97x = 12,220.94 × 3,467.69
  4. Step 4: Simplify right side
    8,151.97x = 42,378,431.43
  5. Step 5: Solve for x
    x = 42,378,431.43/8,151.97
  6. Step 6: Final answer
    x = 5,198.55

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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.