Home / 18,131.07-27,186.81-7,034.78

Finding the Fourth Proportional to 18,131.07, 27,186.81 and 7,034.78

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Solution

The fourth proportional to 18,131.07, 27,186.81 and 7,034.78 is: 10,548.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,131.07 : 27,186.81 = 7,034.78 : x
  2. Step 2: Convert to fraction form
    18,131.07/27,186.81 = 7,034.78/x
  3. Step 3: Cross multiply
    18,131.07x = 27,186.81 × 7,034.78
  4. Step 4: Simplify right side
    18,131.07x = 191,253,227.25
  5. Step 5: Solve for x
    x = 191,253,227.25/18,131.07
  6. Step 6: Final answer
    x = 10,548.37

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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.