Home / 11,617.28-17,424.68-4,221.44

Finding the Fourth Proportional to 11,617.28, 17,424.68 and 4,221.44

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Solution

The fourth proportional to 11,617.28, 17,424.68 and 4,221.44 is: 6,331.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,617.28 : 17,424.68 = 4,221.44 : x
  2. Step 2: Convert to fraction form
    11,617.28/17,424.68 = 4,221.44/x
  3. Step 3: Cross multiply
    11,617.28x = 17,424.68 × 4,221.44
  4. Step 4: Simplify right side
    11,617.28x = 73,557,241.14
  5. Step 5: Solve for x
    x = 73,557,241.14/11,617.28
  6. Step 6: Final answer
    x = 6,331.71

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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.