Home / 11,390.28-17,087.92-3,493.88

Finding the Fourth Proportional to 11,390.28, 17,087.92 and 3,493.88

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Solution

The fourth proportional to 11,390.28, 17,087.92 and 3,493.88 is: 5,241.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,390.28 : 17,087.92 = 3,493.88 : x
  2. Step 2: Convert to fraction form
    11,390.28/17,087.92 = 3,493.88/x
  3. Step 3: Cross multiply
    11,390.28x = 17,087.92 × 3,493.88
  4. Step 4: Simplify right side
    11,390.28x = 59,703,039.02
  5. Step 5: Solve for x
    x = 59,703,039.02/11,390.28
  6. Step 6: Final answer
    x = 5,241.58

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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.