Home / 11,982.43-17,975.62-5,408.47

Finding the Fourth Proportional to 11,982.43, 17,975.62 and 5,408.47

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Solution

The fourth proportional to 11,982.43, 17,975.62 and 5,408.47 is: 8,113.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,982.43 : 17,975.62 = 5,408.47 : x
  2. Step 2: Convert to fraction form
    11,982.43/17,975.62 = 5,408.47/x
  3. Step 3: Cross multiply
    11,982.43x = 17,975.62 × 5,408.47
  4. Step 4: Simplify right side
    11,982.43x = 97,220,498.10
  5. Step 5: Solve for x
    x = 97,220,498.10/11,982.43
  6. Step 6: Final answer
    x = 8,113.59

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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.