Home / 11,279.16-16,919.30-2,959.20

Finding the Fourth Proportional to 11,279.16, 16,919.30 and 2,959.20

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Solution

The fourth proportional to 11,279.16, 16,919.30 and 2,959.20 is: 4,438.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,279.16 : 16,919.30 = 2,959.20 : x
  2. Step 2: Convert to fraction form
    11,279.16/16,919.30 = 2,959.20/x
  3. Step 3: Cross multiply
    11,279.16x = 16,919.30 × 2,959.20
  4. Step 4: Simplify right side
    11,279.16x = 50,067,493.17
  5. Step 5: Solve for x
    x = 50,067,493.17/11,279.16
  6. Step 6: Final answer
    x = 4,438.94

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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.