Home / 8,112.57-11,195.49-4,757.80

Finding the Fourth Proportional to 8,112.57, 11,195.49 and 4,757.80

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Solution

The fourth proportional to 8,112.57, 11,195.49 and 4,757.80 is: 6,565.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,112.57 : 11,195.49 = 4,757.80 : x
  2. Step 2: Convert to fraction form
    8,112.57/11,195.49 = 4,757.80/x
  3. Step 3: Cross multiply
    8,112.57x = 11,195.49 × 4,757.80
  4. Step 4: Simplify right side
    8,112.57x = 53,265,957.05
  5. Step 5: Solve for x
    x = 53,265,957.05/8,112.57
  6. Step 6: Final answer
    x = 6,565.85

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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.