Home / 18,819.58-28,227.20-4,969.66

Finding the Fourth Proportional to 18,819.58, 28,227.20 and 4,969.66

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Solution

The fourth proportional to 18,819.58, 28,227.20 and 4,969.66 is: 7,453.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,819.58 : 28,227.20 = 4,969.66 : x
  2. Step 2: Convert to fraction form
    18,819.58/28,227.20 = 4,969.66/x
  3. Step 3: Cross multiply
    18,819.58x = 28,227.20 × 4,969.66
  4. Step 4: Simplify right side
    18,819.58x = 140,279,586.75
  5. Step 5: Solve for x
    x = 140,279,586.75/18,819.58
  6. Step 6: Final answer
    x = 7,453.92

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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.