Home / 10,428.46-15,648.78-3,859.24

Finding the Fourth Proportional to 10,428.46, 15,648.78 and 3,859.24

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Solution

The fourth proportional to 10,428.46, 15,648.78 and 3,859.24 is: 5,791.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,428.46 : 15,648.78 = 3,859.24 : x
  2. Step 2: Convert to fraction form
    10,428.46/15,648.78 = 3,859.24/x
  3. Step 3: Cross multiply
    10,428.46x = 15,648.78 × 3,859.24
  4. Step 4: Simplify right side
    10,428.46x = 60,392,397.73
  5. Step 5: Solve for x
    x = 60,392,397.73/10,428.46
  6. Step 6: Final answer
    x = 5,791.11

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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.