Home / 11,080.20-16,621.20-3,289

Finding the Fourth Proportional to 11,080.20, 16,621.20 and 3,289

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Solution

The fourth proportional to 11,080.20, 16,621.20 and 3,289 is: 4,933.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,080.20 : 16,621.20 = 3,289 : x
  2. Step 2: Convert to fraction form
    11,080.20/16,621.20 = 3,289/x
  3. Step 3: Cross multiply
    11,080.20x = 16,621.20 × 3,289
  4. Step 4: Simplify right side
    11,080.20x = 54,667,126.80
  5. Step 5: Solve for x
    x = 54,667,126.80/11,080.20
  6. Step 6: Final answer
    x = 4,933.77

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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.