Home / 10,747.98-16,120.68-2,955.78

Finding the Fourth Proportional to 10,747.98, 16,120.68 and 2,955.78

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Solution

The fourth proportional to 10,747.98, 16,120.68 and 2,955.78 is: 4,433.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,747.98 : 16,120.68 = 2,955.78 : x
  2. Step 2: Convert to fraction form
    10,747.98/16,120.68 = 2,955.78/x
  3. Step 3: Cross multiply
    10,747.98x = 16,120.68 × 2,955.78
  4. Step 4: Simplify right side
    10,747.98x = 47,649,183.53
  5. Step 5: Solve for x
    x = 47,649,183.53/10,747.98
  6. Step 6: Final answer
    x = 4,433.32

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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.