Home / 12,822.20-17,694.66-7,515.96

Finding the Fourth Proportional to 12,822.20, 17,694.66 and 7,515.96

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Solution

The fourth proportional to 12,822.20, 17,694.66 and 7,515.96 is: 10,372.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,822.20 : 17,694.66 = 7,515.96 : x
  2. Step 2: Convert to fraction form
    12,822.20/17,694.66 = 7,515.96/x
  3. Step 3: Cross multiply
    12,822.20x = 17,694.66 × 7,515.96
  4. Step 4: Simplify right side
    12,822.20x = 132,992,356.77
  5. Step 5: Solve for x
    x = 132,992,356.77/12,822.20
  6. Step 6: Final answer
    x = 10,372.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.