Home / 12,917.28-17,825.46-7,251.90

Finding the Fourth Proportional to 12,917.28, 17,825.46 and 7,251.90

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Solution

The fourth proportional to 12,917.28, 17,825.46 and 7,251.90 is: 10,007.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,917.28 : 17,825.46 = 7,251.90 : x
  2. Step 2: Convert to fraction form
    12,917.28/17,825.46 = 7,251.90/x
  3. Step 3: Cross multiply
    12,917.28x = 17,825.46 × 7,251.90
  4. Step 4: Simplify right side
    12,917.28x = 129,268,453.37
  5. Step 5: Solve for x
    x = 129,268,453.37/12,917.28
  6. Step 6: Final answer
    x = 10,007.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.