Home / 8,110.20-12,158.10-4,819.80

Finding the Fourth Proportional to 8,110.20, 12,158.10 and 4,819.80

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Solution

The fourth proportional to 8,110.20, 12,158.10 and 4,819.80 is: 7,225.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,110.20 : 12,158.10 = 4,819.80 : x
  2. Step 2: Convert to fraction form
    8,110.20/12,158.10 = 4,819.80/x
  3. Step 3: Cross multiply
    8,110.20x = 12,158.10 × 4,819.80
  4. Step 4: Simplify right side
    8,110.20x = 58,599,610.38
  5. Step 5: Solve for x
    x = 58,599,610.38/8,110.20
  6. Step 6: Final answer
    x = 7,225.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.