Home / 10,917.56-16,376.52-3,992

Finding the Fourth Proportional to 10,917.56, 16,376.52 and 3,992

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Solution

The fourth proportional to 10,917.56, 16,376.52 and 3,992 is: 5,988.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,917.56 : 16,376.52 = 3,992 : x
  2. Step 2: Convert to fraction form
    10,917.56/16,376.52 = 3,992/x
  3. Step 3: Cross multiply
    10,917.56x = 16,376.52 × 3,992
  4. Step 4: Simplify right side
    10,917.56x = 65,375,067.84
  5. Step 5: Solve for x
    x = 65,375,067.84/10,917.56
  6. Step 6: Final answer
    x = 5,988.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.