Home / 18,791.03-28,186.45-4,751.06

Finding the Fourth Proportional to 18,791.03, 28,186.45 and 4,751.06

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Solution

The fourth proportional to 18,791.03, 28,186.45 and 4,751.06 is: 7,126.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,791.03 : 28,186.45 = 4,751.06 : x
  2. Step 2: Convert to fraction form
    18,791.03/28,186.45 = 4,751.06/x
  3. Step 3: Cross multiply
    18,791.03x = 28,186.45 × 4,751.06
  4. Step 4: Simplify right side
    18,791.03x = 133,915,362.33
  5. Step 5: Solve for x
    x = 133,915,362.33/18,791.03
  6. Step 6: Final answer
    x = 7,126.56

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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.