Home / 8,138.44-11,231.88-4,951.97

Finding the Fourth Proportional to 8,138.44, 11,231.88 and 4,951.97

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Solution

The fourth proportional to 8,138.44, 11,231.88 and 4,951.97 is: 6,834.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,138.44 : 11,231.88 = 4,951.97 : x
  2. Step 2: Convert to fraction form
    8,138.44/11,231.88 = 4,951.97/x
  3. Step 3: Cross multiply
    8,138.44x = 11,231.88 × 4,951.97
  4. Step 4: Simplify right side
    8,138.44x = 55,619,876.64
  5. Step 5: Solve for x
    x = 55,619,876.64/8,138.44
  6. Step 6: Final answer
    x = 6,834.22

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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.