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Finding the Fourth Proportional to 18,170.82, 27,225.42 and 11,136.12

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Solution

The fourth proportional to 18,170.82, 27,225.42 and 11,136.12 is: 16,685.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,170.82 : 27,225.42 = 11,136.12 : x
  2. Step 2: Convert to fraction form
    18,170.82/27,225.42 = 11,136.12/x
  3. Step 3: Cross multiply
    18,170.82x = 27,225.42 × 11,136.12
  4. Step 4: Simplify right side
    18,170.82x = 303,185,544.17
  5. Step 5: Solve for x
    x = 303,185,544.17/18,170.82
  6. Step 6: Final answer
    x = 16,685.30

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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.