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Finding the Fourth Proportional to 13,634.52, 20,448.13 and 3,774.33

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Solution

The fourth proportional to 13,634.52, 20,448.13 and 3,774.33 is: 5,660.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,634.52 : 20,448.13 = 3,774.33 : x
  2. Step 2: Convert to fraction form
    13,634.52/20,448.13 = 3,774.33/x
  3. Step 3: Cross multiply
    13,634.52x = 20,448.13 × 3,774.33
  4. Step 4: Simplify right side
    13,634.52x = 77,177,990.50
  5. Step 5: Solve for x
    x = 77,177,990.50/13,634.52
  6. Step 6: Final answer
    x = 5,660.48

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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.