Home / 8,380.85-12,571.22-2,055.65

Finding the Fourth Proportional to 8,380.85, 12,571.22 and 2,055.65

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Solution

The fourth proportional to 8,380.85, 12,571.22 and 2,055.65 is: 3,083.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,380.85 : 12,571.22 = 2,055.65 : x
  2. Step 2: Convert to fraction form
    8,380.85/12,571.22 = 2,055.65/x
  3. Step 3: Cross multiply
    8,380.85x = 12,571.22 × 2,055.65
  4. Step 4: Simplify right side
    8,380.85x = 25,841,970.68
  5. Step 5: Solve for x
    x = 25,841,970.68/8,380.85
  6. Step 6: Final answer
    x = 3,083.46

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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.