Home / 18,507.36-27,769.68-11,578.08

Finding the Fourth Proportional to 18,507.36, 27,769.68 and 11,578.08

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Solution

The fourth proportional to 18,507.36, 27,769.68 and 11,578.08 is: 17,372.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,507.36 : 27,769.68 = 11,578.08 : x
  2. Step 2: Convert to fraction form
    18,507.36/27,769.68 = 11,578.08/x
  3. Step 3: Cross multiply
    18,507.36x = 27,769.68 × 11,578.08
  4. Step 4: Simplify right side
    18,507.36x = 321,519,576.61
  5. Step 5: Solve for x
    x = 321,519,576.61/18,507.36
  6. Step 6: Final answer
    x = 17,372.53

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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.