Home / 11,720.70-17,581.05-11,173.95

Finding the Fourth Proportional to 11,720.70, 17,581.05 and 11,173.95

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Solution

The fourth proportional to 11,720.70, 17,581.05 and 11,173.95 is: 16,760.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,720.70 : 17,581.05 = 11,173.95 : x
  2. Step 2: Convert to fraction form
    11,720.70/17,581.05 = 11,173.95/x
  3. Step 3: Cross multiply
    11,720.70x = 17,581.05 × 11,173.95
  4. Step 4: Simplify right side
    11,720.70x = 196,449,773.65
  5. Step 5: Solve for x
    x = 196,449,773.65/11,720.70
  6. Step 6: Final answer
    x = 16,760.93

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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.