Home / 18,734.32-25,845.24-11,278

Finding the Fourth Proportional to 18,734.32, 25,845.24 and 11,278

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Solution

The fourth proportional to 18,734.32, 25,845.24 and 11,278 is: 15,558.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,734.32 : 25,845.24 = 11,278 : x
  2. Step 2: Convert to fraction form
    18,734.32/25,845.24 = 11,278/x
  3. Step 3: Cross multiply
    18,734.32x = 25,845.24 × 11,278
  4. Step 4: Simplify right side
    18,734.32x = 291,482,616.72
  5. Step 5: Solve for x
    x = 291,482,616.72/18,734.32
  6. Step 6: Final answer
    x = 15,558.75

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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.