Home / 8,107.66-12,160.45-2,561.57

Finding the Fourth Proportional to 8,107.66, 12,160.45 and 2,561.57

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Solution

The fourth proportional to 8,107.66, 12,160.45 and 2,561.57 is: 3,842.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,107.66 : 12,160.45 = 2,561.57 : x
  2. Step 2: Convert to fraction form
    8,107.66/12,160.45 = 2,561.57/x
  3. Step 3: Cross multiply
    8,107.66x = 12,160.45 × 2,561.57
  4. Step 4: Simplify right side
    8,107.66x = 31,149,843.91
  5. Step 5: Solve for x
    x = 31,149,843.91/8,107.66
  6. Step 6: Final answer
    x = 3,842.03

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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.