Home / 12,115.14-18,172.71-3,795.23

Finding the Fourth Proportional to 12,115.14, 18,172.71 and 3,795.23

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Solution

The fourth proportional to 12,115.14, 18,172.71 and 3,795.23 is: 5,692.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,115.14 : 18,172.71 = 3,795.23 : x
  2. Step 2: Convert to fraction form
    12,115.14/18,172.71 = 3,795.23/x
  3. Step 3: Cross multiply
    12,115.14x = 18,172.71 × 3,795.23
  4. Step 4: Simplify right side
    12,115.14x = 68,969,614.17
  5. Step 5: Solve for x
    x = 68,969,614.17/12,115.14
  6. Step 6: Final answer
    x = 5,692.85

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Similar ratio
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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.