Home / 10,217.18-15,323.94-2,819.80

Finding the Fourth Proportional to 10,217.18, 15,323.94 and 2,819.80

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Solution

The fourth proportional to 10,217.18, 15,323.94 and 2,819.80 is: 4,229.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,217.18 : 15,323.94 = 2,819.80 : x
  2. Step 2: Convert to fraction form
    10,217.18/15,323.94 = 2,819.80/x
  3. Step 3: Cross multiply
    10,217.18x = 15,323.94 × 2,819.80
  4. Step 4: Simplify right side
    10,217.18x = 43,210,446.01
  5. Step 5: Solve for x
    x = 43,210,446.01/10,217.18
  6. Step 6: Final answer
    x = 4,229.19

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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.