Home / 10,921.50-16,382.25-3,996

Finding the Fourth Proportional to 10,921.50, 16,382.25 and 3,996

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Solution

The fourth proportional to 10,921.50, 16,382.25 and 3,996 is: 5,994

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,921.50 : 16,382.25 = 3,996 : x
  2. Step 2: Convert to fraction form
    10,921.50/16,382.25 = 3,996/x
  3. Step 3: Cross multiply
    10,921.50x = 16,382.25 × 3,996
  4. Step 4: Simplify right side
    10,921.50x = 65,463,471
  5. Step 5: Solve for x
    x = 65,463,471/10,921.50
  6. Step 6: Final answer
    x = 5,994

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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.