Home / 8,163.16-12,239.26-3,778.22

Finding the Fourth Proportional to 8,163.16, 12,239.26 and 3,778.22

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Solution

The fourth proportional to 8,163.16, 12,239.26 and 3,778.22 is: 5,664.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,163.16 : 12,239.26 = 3,778.22 : x
  2. Step 2: Convert to fraction form
    8,163.16/12,239.26 = 3,778.22/x
  3. Step 3: Cross multiply
    8,163.16x = 12,239.26 × 3,778.22
  4. Step 4: Simplify right side
    8,163.16x = 46,242,616.92
  5. Step 5: Solve for x
    x = 46,242,616.92/8,163.16
  6. Step 6: Final answer
    x = 5,664.79

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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.