Home / 18,118.08-27,147.96-15,338.16

Finding the Fourth Proportional to 18,118.08, 27,147.96 and 15,338.16

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Solution

The fourth proportional to 18,118.08, 27,147.96 and 15,338.16 is: 22,982.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,118.08 : 27,147.96 = 15,338.16 : x
  2. Step 2: Convert to fraction form
    18,118.08/27,147.96 = 15,338.16/x
  3. Step 3: Cross multiply
    18,118.08x = 27,147.96 × 15,338.16
  4. Step 4: Simplify right side
    18,118.08x = 416,399,754.15
  5. Step 5: Solve for x
    x = 416,399,754.15/18,118.08
  6. Step 6: Final answer
    x = 22,982.55

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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.