Home / 8,104.78-12,138.27-6,241.11

Finding the Fourth Proportional to 8,104.78, 12,138.27 and 6,241.11

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Solution

The fourth proportional to 8,104.78, 12,138.27 and 6,241.11 is: 9,347.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,104.78 : 12,138.27 = 6,241.11 : x
  2. Step 2: Convert to fraction form
    8,104.78/12,138.27 = 6,241.11/x
  3. Step 3: Cross multiply
    8,104.78x = 12,138.27 × 6,241.11
  4. Step 4: Simplify right side
    8,104.78x = 75,756,278.28
  5. Step 5: Solve for x
    x = 75,756,278.28/8,104.78
  6. Step 6: Final answer
    x = 9,347.11

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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.