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Finding the Fourth Proportional to 17,086.73, 25,630.87 and 5,239.64

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Solution

The fourth proportional to 17,086.73, 25,630.87 and 5,239.64 is: 7,859.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,086.73 : 25,630.87 = 5,239.64 : x
  2. Step 2: Convert to fraction form
    17,086.73/25,630.87 = 5,239.64/x
  3. Step 3: Cross multiply
    17,086.73x = 25,630.87 × 5,239.64
  4. Step 4: Simplify right side
    17,086.73x = 134,296,463.05
  5. Step 5: Solve for x
    x = 134,296,463.05/17,086.73
  6. Step 6: Final answer
    x = 7,859.69

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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.