Home / 10,872.98-16,313.79-3,948.02

Finding the Fourth Proportional to 10,872.98, 16,313.79 and 3,948.02

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Solution

The fourth proportional to 10,872.98, 16,313.79 and 3,948.02 is: 5,923.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,872.98 : 16,313.79 = 3,948.02 : x
  2. Step 2: Convert to fraction form
    10,872.98/16,313.79 = 3,948.02/x
  3. Step 3: Cross multiply
    10,872.98x = 16,313.79 × 3,948.02
  4. Step 4: Simplify right side
    10,872.98x = 64,407,169.20
  5. Step 5: Solve for x
    x = 64,407,169.20/10,872.98
  6. Step 6: Final answer
    x = 5,923.60

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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.