Home / 11,255.25-16,869.39-5,243.22

Finding the Fourth Proportional to 11,255.25, 16,869.39 and 5,243.22

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Solution

The fourth proportional to 11,255.25, 16,869.39 and 5,243.22 is: 7,858.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,255.25 : 16,869.39 = 5,243.22 : x
  2. Step 2: Convert to fraction form
    11,255.25/16,869.39 = 5,243.22/x
  3. Step 3: Cross multiply
    11,255.25x = 16,869.39 × 5,243.22
  4. Step 4: Simplify right side
    11,255.25x = 88,449,923.04
  5. Step 5: Solve for x
    x = 88,449,923.04/11,255.25
  6. Step 6: Final answer
    x = 7,858.55

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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.