Home / 11,813.29-17,721.55-3,493.96

Finding the Fourth Proportional to 11,813.29, 17,721.55 and 3,493.96

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Solution

The fourth proportional to 11,813.29, 17,721.55 and 3,493.96 is: 5,241.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,813.29 : 17,721.55 = 3,493.96 : x
  2. Step 2: Convert to fraction form
    11,813.29/17,721.55 = 3,493.96/x
  3. Step 3: Cross multiply
    11,813.29x = 17,721.55 × 3,493.96
  4. Step 4: Simplify right side
    11,813.29x = 61,918,289.50
  5. Step 5: Solve for x
    x = 61,918,289.50/11,813.29
  6. Step 6: Final answer
    x = 5,241.41

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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.