Home / 8,819.41-12,171.11-5,042.57

Finding the Fourth Proportional to 8,819.41, 12,171.11 and 5,042.57

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Solution

The fourth proportional to 8,819.41, 12,171.11 and 5,042.57 is: 6,958.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,819.41 : 12,171.11 = 5,042.57 : x
  2. Step 2: Convert to fraction form
    8,819.41/12,171.11 = 5,042.57/x
  3. Step 3: Cross multiply
    8,819.41x = 12,171.11 × 5,042.57
  4. Step 4: Simplify right side
    8,819.41x = 61,373,648.94
  5. Step 5: Solve for x
    x = 61,373,648.94/8,819.41
  6. Step 6: Final answer
    x = 6,958.93

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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.