Home / 11,178.83-16,764.12-3,279.20

Finding the Fourth Proportional to 11,178.83, 16,764.12 and 3,279.20

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Solution

The fourth proportional to 11,178.83, 16,764.12 and 3,279.20 is: 4,917.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,178.83 : 16,764.12 = 3,279.20 : x
  2. Step 2: Convert to fraction form
    11,178.83/16,764.12 = 3,279.20/x
  3. Step 3: Cross multiply
    11,178.83x = 16,764.12 × 3,279.20
  4. Step 4: Simplify right side
    11,178.83x = 54,972,818.48
  5. Step 5: Solve for x
    x = 54,972,818.48/11,178.83
  6. Step 6: Final answer
    x = 4,917.58

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1.5x scale

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.