Home / 8,255.20-12,368.42-6,877.39

Finding the Fourth Proportional to 8,255.20, 12,368.42 and 6,877.39

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Solution

The fourth proportional to 8,255.20, 12,368.42 and 6,877.39 is: 10,304.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,255.20 : 12,368.42 = 6,877.39 : x
  2. Step 2: Convert to fraction form
    8,255.20/12,368.42 = 6,877.39/x
  3. Step 3: Cross multiply
    8,255.20x = 12,368.42 × 6,877.39
  4. Step 4: Simplify right side
    8,255.20x = 85,062,351.79
  5. Step 5: Solve for x
    x = 85,062,351.79/8,255.20
  6. Step 6: Final answer
    x = 10,304.10

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1.5x scale

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.