Home / 8,076.26-12,112.05-3,144.80

Finding the Fourth Proportional to 8,076.26, 12,112.05 and 3,144.80

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Solution

The fourth proportional to 8,076.26, 12,112.05 and 3,144.80 is: 4,716.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,076.26 : 12,112.05 = 3,144.80 : x
  2. Step 2: Convert to fraction form
    8,076.26/12,112.05 = 3,144.80/x
  3. Step 3: Cross multiply
    8,076.26x = 12,112.05 × 3,144.80
  4. Step 4: Simplify right side
    8,076.26x = 38,089,974.84
  5. Step 5: Solve for x
    x = 38,089,974.84/8,076.26
  6. Step 6: Final answer
    x = 4,716.29

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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.