Home / 8,414.28-11,611.72-4,879.56

Finding the Fourth Proportional to 8,414.28, 11,611.72 and 4,879.56

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Solution

The fourth proportional to 8,414.28, 11,611.72 and 4,879.56 is: 6,733.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,414.28 : 11,611.72 = 4,879.56 : x
  2. Step 2: Convert to fraction form
    8,414.28/11,611.72 = 4,879.56/x
  3. Step 3: Cross multiply
    8,414.28x = 11,611.72 × 4,879.56
  4. Step 4: Simplify right side
    8,414.28x = 56,660,084.44
  5. Step 5: Solve for x
    x = 56,660,084.44/8,414.28
  6. Step 6: Final answer
    x = 6,733.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.