Home / 18,856.41-25,976.97-13,180.64

Finding the Fourth Proportional to 18,856.41, 25,976.97 and 13,180.64

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Solution

The fourth proportional to 18,856.41, 25,976.97 and 13,180.64 is: 18,157.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,856.41 : 25,976.97 = 13,180.64 : x
  2. Step 2: Convert to fraction form
    18,856.41/25,976.97 = 13,180.64/x
  3. Step 3: Cross multiply
    18,856.41x = 25,976.97 × 13,180.64
  4. Step 4: Simplify right side
    18,856.41x = 342,392,959.98
  5. Step 5: Solve for x
    x = 342,392,959.98/18,856.41
  6. Step 6: Final answer
    x = 18,157.91

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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.