Home / 8,819.97-12,170.27-5,042.54

Finding the Fourth Proportional to 8,819.97, 12,170.27 and 5,042.54

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Solution

The fourth proportional to 8,819.97, 12,170.27 and 5,042.54 is: 6,957.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,819.97 : 12,170.27 = 5,042.54 : x
  2. Step 2: Convert to fraction form
    8,819.97/12,170.27 = 5,042.54/x
  3. Step 3: Cross multiply
    8,819.97x = 12,170.27 × 5,042.54
  4. Step 4: Simplify right side
    8,819.97x = 61,368,987.22
  5. Step 5: Solve for x
    x = 61,368,987.22/8,819.97
  6. Step 6: Final answer
    x = 6,957.96

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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.