Home / 12,202.75-18,311.64-5,629.43

Finding the Fourth Proportional to 12,202.75, 18,311.64 and 5,629.43

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Solution

The fourth proportional to 12,202.75, 18,311.64 and 5,629.43 is: 8,447.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,202.75 : 18,311.64 = 5,629.43 : x
  2. Step 2: Convert to fraction form
    12,202.75/18,311.64 = 5,629.43/x
  3. Step 3: Cross multiply
    12,202.75x = 18,311.64 × 5,629.43
  4. Step 4: Simplify right side
    12,202.75x = 103,084,120.23
  5. Step 5: Solve for x
    x = 103,084,120.23/12,202.75
  6. Step 6: Final answer
    x = 8,447.61

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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.