Home / 12,179.16-18,273.60-7,251.12

Finding the Fourth Proportional to 12,179.16, 18,273.60 and 7,251.12

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Solution

The fourth proportional to 12,179.16, 18,273.60 and 7,251.12 is: 10,879.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,179.16 : 18,273.60 = 7,251.12 : x
  2. Step 2: Convert to fraction form
    12,179.16/18,273.60 = 7,251.12/x
  3. Step 3: Cross multiply
    12,179.16x = 18,273.60 × 7,251.12
  4. Step 4: Simplify right side
    12,179.16x = 132,504,066.43
  5. Step 5: Solve for x
    x = 132,504,066.43/12,179.16
  6. Step 6: Final answer
    x = 10,879.57

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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.