Home / 8,145.20-12,195.60-4,241.36

Finding the Fourth Proportional to 8,145.20, 12,195.60 and 4,241.36

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Solution

The fourth proportional to 8,145.20, 12,195.60 and 4,241.36 is: 6,350.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,145.20 : 12,195.60 = 4,241.36 : x
  2. Step 2: Convert to fraction form
    8,145.20/12,195.60 = 4,241.36/x
  3. Step 3: Cross multiply
    8,145.20x = 12,195.60 × 4,241.36
  4. Step 4: Simplify right side
    8,145.20x = 51,725,930.02
  5. Step 5: Solve for x
    x = 51,725,930.02/8,145.20
  6. Step 6: Final answer
    x = 6,350.48

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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.