Home / 8,115.57-12,166.07-5,651.55

Finding the Fourth Proportional to 8,115.57, 12,166.07 and 5,651.55

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Solution

The fourth proportional to 8,115.57, 12,166.07 and 5,651.55 is: 8,472.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,115.57 : 12,166.07 = 5,651.55 : x
  2. Step 2: Convert to fraction form
    8,115.57/12,166.07 = 5,651.55/x
  3. Step 3: Cross multiply
    8,115.57x = 12,166.07 × 5,651.55
  4. Step 4: Simplify right side
    8,115.57x = 68,757,124.65
  5. Step 5: Solve for x
    x = 68,757,124.65/8,115.57
  6. Step 6: Final answer
    x = 8,472.25

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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.