Home / 10,400.46-15,600.78-3,474.96

Finding the Fourth Proportional to 10,400.46, 15,600.78 and 3,474.96

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Solution

The fourth proportional to 10,400.46, 15,600.78 and 3,474.96 is: 5,212.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,400.46 : 15,600.78 = 3,474.96 : x
  2. Step 2: Convert to fraction form
    10,400.46/15,600.78 = 3,474.96/x
  3. Step 3: Cross multiply
    10,400.46x = 15,600.78 × 3,474.96
  4. Step 4: Simplify right side
    10,400.46x = 54,212,086.47
  5. Step 5: Solve for x
    x = 54,212,086.47/10,400.46
  6. Step 6: Final answer
    x = 5,212.47

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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.