Home / 8,161.16-12,243.78-3,230.84

Finding the Fourth Proportional to 8,161.16, 12,243.78 and 3,230.84

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Solution

The fourth proportional to 8,161.16, 12,243.78 and 3,230.84 is: 4,847.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,161.16 : 12,243.78 = 3,230.84 : x
  2. Step 2: Convert to fraction form
    8,161.16/12,243.78 = 3,230.84/x
  3. Step 3: Cross multiply
    8,161.16x = 12,243.78 × 3,230.84
  4. Step 4: Simplify right side
    8,161.16x = 39,557,665.00
  5. Step 5: Solve for x
    x = 39,557,665.00/8,161.16
  6. Step 6: Final answer
    x = 4,847.07

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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.