Home / 10,819.20-16,227.60-3,028.80

Finding the Fourth Proportional to 10,819.20, 16,227.60 and 3,028.80

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Solution

The fourth proportional to 10,819.20, 16,227.60 and 3,028.80 is: 4,542.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,819.20 : 16,227.60 = 3,028.80 : x
  2. Step 2: Convert to fraction form
    10,819.20/16,227.60 = 3,028.80/x
  3. Step 3: Cross multiply
    10,819.20x = 16,227.60 × 3,028.80
  4. Step 4: Simplify right side
    10,819.20x = 49,150,154.88
  5. Step 5: Solve for x
    x = 49,150,154.88/10,819.20
  6. Step 6: Final answer
    x = 4,542.86

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1.5x scale

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.