Home / 11,321.13-16,984.21-3,722.75

Finding the Fourth Proportional to 11,321.13, 16,984.21 and 3,722.75

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Solution

The fourth proportional to 11,321.13, 16,984.21 and 3,722.75 is: 5,584.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,321.13 : 16,984.21 = 3,722.75 : x
  2. Step 2: Convert to fraction form
    11,321.13/16,984.21 = 3,722.75/x
  3. Step 3: Cross multiply
    11,321.13x = 16,984.21 × 3,722.75
  4. Step 4: Simplify right side
    11,321.13x = 63,227,949.16
  5. Step 5: Solve for x
    x = 63,227,949.16/11,321.13
  6. Step 6: Final answer
    x = 5,584.95

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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.