Home / 18,728.52-25,845.24-11,179.74

Finding the Fourth Proportional to 18,728.52, 25,845.24 and 11,179.74

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Solution

The fourth proportional to 18,728.52, 25,845.24 and 11,179.74 is: 15,427.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,728.52 : 25,845.24 = 11,179.74 : x
  2. Step 2: Convert to fraction form
    18,728.52/25,845.24 = 11,179.74/x
  3. Step 3: Cross multiply
    18,728.52x = 25,845.24 × 11,179.74
  4. Step 4: Simplify right side
    18,728.52x = 288,943,063.44
  5. Step 5: Solve for x
    x = 288,943,063.44/18,728.52
  6. Step 6: Final answer
    x = 15,427.97

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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.