Home / 8,112.26-11,193.81-4,967.78

Finding the Fourth Proportional to 8,112.26, 11,193.81 and 4,967.78

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Solution

The fourth proportional to 8,112.26, 11,193.81 and 4,967.78 is: 6,854.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,112.26 : 11,193.81 = 4,967.78 : x
  2. Step 2: Convert to fraction form
    8,112.26/11,193.81 = 4,967.78/x
  3. Step 3: Cross multiply
    8,112.26x = 11,193.81 × 4,967.78
  4. Step 4: Simplify right side
    8,112.26x = 55,608,385.44
  5. Step 5: Solve for x
    x = 55,608,385.44/8,112.26
  6. Step 6: Final answer
    x = 6,854.86

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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.