Home / 11,721.62-17,584.26-3,928.62

Finding the Fourth Proportional to 11,721.62, 17,584.26 and 3,928.62

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Solution

The fourth proportional to 11,721.62, 17,584.26 and 3,928.62 is: 5,893.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,721.62 : 17,584.26 = 3,928.62 : x
  2. Step 2: Convert to fraction form
    11,721.62/17,584.26 = 3,928.62/x
  3. Step 3: Cross multiply
    11,721.62x = 17,584.26 × 3,928.62
  4. Step 4: Simplify right side
    11,721.62x = 69,081,875.52
  5. Step 5: Solve for x
    x = 69,081,875.52/11,721.62
  6. Step 6: Final answer
    x = 5,893.54

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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.