Home / 8,126.82-12,190.68-2,932.74

Finding the Fourth Proportional to 8,126.82, 12,190.68 and 2,932.74

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Solution

The fourth proportional to 8,126.82, 12,190.68 and 2,932.74 is: 4,399.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,126.82 : 12,190.68 = 2,932.74 : x
  2. Step 2: Convert to fraction form
    8,126.82/12,190.68 = 2,932.74/x
  3. Step 3: Cross multiply
    8,126.82x = 12,190.68 × 2,932.74
  4. Step 4: Simplify right side
    8,126.82x = 35,752,094.86
  5. Step 5: Solve for x
    x = 35,752,094.86/8,126.82
  6. Step 6: Final answer
    x = 4,399.27

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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.