Home / 8,923.75-13,375.96-3,986.59

Finding the Fourth Proportional to 8,923.75, 13,375.96 and 3,986.59

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Solution

The fourth proportional to 8,923.75, 13,375.96 and 3,986.59 is: 5,975.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,923.75 : 13,375.96 = 3,986.59 : x
  2. Step 2: Convert to fraction form
    8,923.75/13,375.96 = 3,986.59/x
  3. Step 3: Cross multiply
    8,923.75x = 13,375.96 × 3,986.59
  4. Step 4: Simplify right side
    8,923.75x = 53,324,468.38
  5. Step 5: Solve for x
    x = 53,324,468.38/8,923.75
  6. Step 6: Final answer
    x = 5,975.57

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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.