Home / 8,170.62-12,259.02-3,243.78

Finding the Fourth Proportional to 8,170.62, 12,259.02 and 3,243.78

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Solution

The fourth proportional to 8,170.62, 12,259.02 and 3,243.78 is: 4,866.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,170.62 : 12,259.02 = 3,243.78 : x
  2. Step 2: Convert to fraction form
    8,170.62/12,259.02 = 3,243.78/x
  3. Step 3: Cross multiply
    8,170.62x = 12,259.02 × 3,243.78
  4. Step 4: Simplify right side
    8,170.62x = 39,765,563.90
  5. Step 5: Solve for x
    x = 39,765,563.90/8,170.62
  6. Step 6: Final answer
    x = 4,866.90

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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.