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Finding the Fourth Proportional to 11,489.80, 17,237.10 and 3,703.96

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Solution

The fourth proportional to 11,489.80, 17,237.10 and 3,703.96 is: 5,556.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,489.80 : 17,237.10 = 3,703.96 : x
  2. Step 2: Convert to fraction form
    11,489.80/17,237.10 = 3,703.96/x
  3. Step 3: Cross multiply
    11,489.80x = 17,237.10 × 3,703.96
  4. Step 4: Simplify right side
    11,489.80x = 63,845,528.92
  5. Step 5: Solve for x
    x = 63,845,528.92/11,489.80
  6. Step 6: Final answer
    x = 5,556.71

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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.