Home / 18,974.68-26,181-11,012.65

Finding the Fourth Proportional to 18,974.68, 26,181 and 11,012.65

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Solution

The fourth proportional to 18,974.68, 26,181 and 11,012.65 is: 15,195.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,974.68 : 26,181 = 11,012.65 : x
  2. Step 2: Convert to fraction form
    18,974.68/26,181 = 11,012.65/x
  3. Step 3: Cross multiply
    18,974.68x = 26,181 × 11,012.65
  4. Step 4: Simplify right side
    18,974.68x = 288,322,189.65
  5. Step 5: Solve for x
    x = 288,322,189.65/18,974.68
  6. Step 6: Final answer
    x = 15,195.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.