Home / 10,215.59-15,324.12-2,819.48

Finding the Fourth Proportional to 10,215.59, 15,324.12 and 2,819.48

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Solution

The fourth proportional to 10,215.59, 15,324.12 and 2,819.48 is: 4,229.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,215.59 : 15,324.12 = 2,819.48 : x
  2. Step 2: Convert to fraction form
    10,215.59/15,324.12 = 2,819.48/x
  3. Step 3: Cross multiply
    10,215.59x = 15,324.12 × 2,819.48
  4. Step 4: Simplify right side
    10,215.59x = 43,205,973.24
  5. Step 5: Solve for x
    x = 43,205,973.24/10,215.59
  6. Step 6: Final answer
    x = 4,229.42

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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.