Home / 12,628.44-17,427.13-7,251.75

Finding the Fourth Proportional to 12,628.44, 17,427.13 and 7,251.75

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Solution

The fourth proportional to 12,628.44, 17,427.13 and 7,251.75 is: 10,007.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,628.44 : 17,427.13 = 7,251.75 : x
  2. Step 2: Convert to fraction form
    12,628.44/17,427.13 = 7,251.75/x
  3. Step 3: Cross multiply
    12,628.44x = 17,427.13 × 7,251.75
  4. Step 4: Simplify right side
    12,628.44x = 126,377,171.85
  5. Step 5: Solve for x
    x = 126,377,171.85/12,628.44
  6. Step 6: Final answer
    x = 10,007.35

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1.5x scale

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.