Home / 12,828.24-17,694.45-7,517.88

Finding the Fourth Proportional to 12,828.24, 17,694.45 and 7,517.88

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Solution

The fourth proportional to 12,828.24, 17,694.45 and 7,517.88 is: 10,369.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,828.24 : 17,694.45 = 7,517.88 : x
  2. Step 2: Convert to fraction form
    12,828.24/17,694.45 = 7,517.88/x
  3. Step 3: Cross multiply
    12,828.24x = 17,694.45 × 7,517.88
  4. Step 4: Simplify right side
    12,828.24x = 133,024,751.77
  5. Step 5: Solve for x
    x = 133,024,751.77/12,828.24
  6. Step 6: Final answer
    x = 10,369.68

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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.