Home / 8,241.20-12,342.60-6,282.80

Finding the Fourth Proportional to 8,241.20, 12,342.60 and 6,282.80

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Solution

The fourth proportional to 8,241.20, 12,342.60 and 6,282.80 is: 9,409.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,241.20 : 12,342.60 = 6,282.80 : x
  2. Step 2: Convert to fraction form
    8,241.20/12,342.60 = 6,282.80/x
  3. Step 3: Cross multiply
    8,241.20x = 12,342.60 × 6,282.80
  4. Step 4: Simplify right side
    8,241.20x = 77,546,087.28
  5. Step 5: Solve for x
    x = 77,546,087.28/8,241.20
  6. Step 6: Final answer
    x = 9,409.56

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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.