Home / 18,759.33-28,136.82-4,909.41

Finding the Fourth Proportional to 18,759.33, 28,136.82 and 4,909.41

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Solution

The fourth proportional to 18,759.33, 28,136.82 and 4,909.41 is: 7,363.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,759.33 : 28,136.82 = 4,909.41 : x
  2. Step 2: Convert to fraction form
    18,759.33/28,136.82 = 4,909.41/x
  3. Step 3: Cross multiply
    18,759.33x = 28,136.82 × 4,909.41
  4. Step 4: Simplify right side
    18,759.33x = 138,135,185.48
  5. Step 5: Solve for x
    x = 138,135,185.48/18,759.33
  6. Step 6: Final answer
    x = 7,363.55

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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.