Home / 11,982.42-17,974.74-5,745.42

Finding the Fourth Proportional to 11,982.42, 17,974.74 and 5,745.42

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Solution

The fourth proportional to 11,982.42, 17,974.74 and 5,745.42 is: 8,618.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,982.42 : 17,974.74 = 5,745.42 : x
  2. Step 2: Convert to fraction form
    11,982.42/17,974.74 = 5,745.42/x
  3. Step 3: Cross multiply
    11,982.42x = 17,974.74 × 5,745.42
  4. Step 4: Simplify right side
    11,982.42x = 103,272,430.69
  5. Step 5: Solve for x
    x = 103,272,430.69/11,982.42
  6. Step 6: Final answer
    x = 8,618.66

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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.