Home / 11,984.55-17,982.89-8,080.75

Finding the Fourth Proportional to 11,984.55, 17,982.89 and 8,080.75

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Solution

The fourth proportional to 11,984.55, 17,982.89 and 8,080.75 is: 12,125.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,984.55 : 17,982.89 = 8,080.75 : x
  2. Step 2: Convert to fraction form
    11,984.55/17,982.89 = 8,080.75/x
  3. Step 3: Cross multiply
    11,984.55x = 17,982.89 × 8,080.75
  4. Step 4: Simplify right side
    11,984.55x = 145,315,238.37
  5. Step 5: Solve for x
    x = 145,315,238.37/11,984.55
  6. Step 6: Final answer
    x = 12,125.21

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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.