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Finding the Fourth Proportional to 17,187.56, 25,791.28 and 9,290.12

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Solution

The fourth proportional to 17,187.56, 25,791.28 and 9,290.12 is: 13,940.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,187.56 : 25,791.28 = 9,290.12 : x
  2. Step 2: Convert to fraction form
    17,187.56/25,791.28 = 9,290.12/x
  3. Step 3: Cross multiply
    17,187.56x = 25,791.28 × 9,290.12
  4. Step 4: Simplify right side
    17,187.56x = 239,604,086.15
  5. Step 5: Solve for x
    x = 239,604,086.15/17,187.56
  6. Step 6: Final answer
    x = 13,940.55

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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.