Home / 11,213.88-16,821.06-3,422.52

Finding the Fourth Proportional to 11,213.88, 16,821.06 and 3,422.52

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Solution

The fourth proportional to 11,213.88, 16,821.06 and 3,422.52 is: 5,133.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,213.88 : 16,821.06 = 3,422.52 : x
  2. Step 2: Convert to fraction form
    11,213.88/16,821.06 = 3,422.52/x
  3. Step 3: Cross multiply
    11,213.88x = 16,821.06 × 3,422.52
  4. Step 4: Simplify right side
    11,213.88x = 57,570,414.27
  5. Step 5: Solve for x
    x = 57,570,414.27/11,213.88
  6. Step 6: Final answer
    x = 5,133.85

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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.