Home / 18,839.82-28,266.66-7,743.54

Finding the Fourth Proportional to 18,839.82, 28,266.66 and 7,743.54

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Solution

The fourth proportional to 18,839.82, 28,266.66 and 7,743.54 is: 11,618.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,839.82 : 28,266.66 = 7,743.54 : x
  2. Step 2: Convert to fraction form
    18,839.82/28,266.66 = 7,743.54/x
  3. Step 3: Cross multiply
    18,839.82x = 28,266.66 × 7,743.54
  4. Step 4: Simplify right side
    18,839.82x = 218,884,012.38
  5. Step 5: Solve for x
    x = 218,884,012.38/18,839.82
  6. Step 6: Final answer
    x = 11,618.16

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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.