Home / 10,921.52-16,382.29-3,322.86

Finding the Fourth Proportional to 10,921.52, 16,382.29 and 3,322.86

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Solution

The fourth proportional to 10,921.52, 16,382.29 and 3,322.86 is: 4,984.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,921.52 : 16,382.29 = 3,322.86 : x
  2. Step 2: Convert to fraction form
    10,921.52/16,382.29 = 3,322.86/x
  3. Step 3: Cross multiply
    10,921.52x = 16,382.29 × 3,322.86
  4. Step 4: Simplify right side
    10,921.52x = 54,436,039.54
  5. Step 5: Solve for x
    x = 54,436,039.54/10,921.52
  6. Step 6: Final answer
    x = 4,984.29

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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.