Home / 18,112.82-27,176.16-7,020.38

Finding the Fourth Proportional to 18,112.82, 27,176.16 and 7,020.38

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Solution

The fourth proportional to 18,112.82, 27,176.16 and 7,020.38 is: 10,533.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,112.82 : 27,176.16 = 7,020.38 : x
  2. Step 2: Convert to fraction form
    18,112.82/27,176.16 = 7,020.38/x
  3. Step 3: Cross multiply
    18,112.82x = 27,176.16 × 7,020.38
  4. Step 4: Simplify right side
    18,112.82x = 190,786,834.26
  5. Step 5: Solve for x
    x = 190,786,834.26/18,112.82
  6. Step 6: Final answer
    x = 10,533.25

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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.