Home / 8,122.44-12,181.86-2,279.64

Finding the Fourth Proportional to 8,122.44, 12,181.86 and 2,279.64

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Solution

The fourth proportional to 8,122.44, 12,181.86 and 2,279.64 is: 3,418.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,122.44 : 12,181.86 = 2,279.64 : x
  2. Step 2: Convert to fraction form
    8,122.44/12,181.86 = 2,279.64/x
  3. Step 3: Cross multiply
    8,122.44x = 12,181.86 × 2,279.64
  4. Step 4: Simplify right side
    8,122.44x = 27,770,255.33
  5. Step 5: Solve for x
    x = 27,770,255.33/8,122.44
  6. Step 6: Final answer
    x = 3,418.95

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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.