Home / 18,266.27-27,396.25-5,115.51

Finding the Fourth Proportional to 18,266.27, 27,396.25 and 5,115.51

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Solution

The fourth proportional to 18,266.27, 27,396.25 and 5,115.51 is: 7,672.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,266.27 : 27,396.25 = 5,115.51 : x
  2. Step 2: Convert to fraction form
    18,266.27/27,396.25 = 5,115.51/x
  3. Step 3: Cross multiply
    18,266.27x = 27,396.25 × 5,115.51
  4. Step 4: Simplify right side
    18,266.27x = 140,145,778.05
  5. Step 5: Solve for x
    x = 140,145,778.05/18,266.27
  6. Step 6: Final answer
    x = 7,672.38

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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.