Home / 18,136.85-27,188.84-6,447.33

Finding the Fourth Proportional to 18,136.85, 27,188.84 and 6,447.33

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Solution

The fourth proportional to 18,136.85, 27,188.84 and 6,447.33 is: 9,665.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,136.85 : 27,188.84 = 6,447.33 : x
  2. Step 2: Convert to fraction form
    18,136.85/27,188.84 = 6,447.33/x
  3. Step 3: Cross multiply
    18,136.85x = 27,188.84 × 6,447.33
  4. Step 4: Simplify right side
    18,136.85x = 175,295,391.56
  5. Step 5: Solve for x
    x = 175,295,391.56/18,136.85
  6. Step 6: Final answer
    x = 9,665.15

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1.5x scale

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.