Home / 18,378.32-25,353.96-10,922

Finding the Fourth Proportional to 18,378.32, 25,353.96 and 10,922

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Solution

The fourth proportional to 18,378.32, 25,353.96 and 10,922 is: 15,067.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,378.32 : 25,353.96 = 10,922 : x
  2. Step 2: Convert to fraction form
    18,378.32/25,353.96 = 10,922/x
  3. Step 3: Cross multiply
    18,378.32x = 25,353.96 × 10,922
  4. Step 4: Simplify right side
    18,378.32x = 276,915,951.12
  5. Step 5: Solve for x
    x = 276,915,951.12/18,378.32
  6. Step 6: Final answer
    x = 15,067.53

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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.