Home / 10,821.08-16,240.83-4,251.86

Finding the Fourth Proportional to 10,821.08, 16,240.83 and 4,251.86

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Solution

The fourth proportional to 10,821.08, 16,240.83 and 4,251.86 is: 6,381.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,821.08 : 16,240.83 = 4,251.86 : x
  2. Step 2: Convert to fraction form
    10,821.08/16,240.83 = 4,251.86/x
  3. Step 3: Cross multiply
    10,821.08x = 16,240.83 × 4,251.86
  4. Step 4: Simplify right side
    10,821.08x = 69,053,735.44
  5. Step 5: Solve for x
    x = 69,053,735.44/10,821.08
  6. Step 6: Final answer
    x = 6,381.41

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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.