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Finding the Fourth Proportional to 17,994.28, 26,994.62 and 8,138.20

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Solution

The fourth proportional to 17,994.28, 26,994.62 and 8,138.20 is: 12,208.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,994.28 : 26,994.62 = 8,138.20 : x
  2. Step 2: Convert to fraction form
    17,994.28/26,994.62 = 8,138.20/x
  3. Step 3: Cross multiply
    17,994.28x = 26,994.62 × 8,138.20
  4. Step 4: Simplify right side
    17,994.28x = 219,687,616.48
  5. Step 5: Solve for x
    x = 219,687,616.48/17,994.28
  6. Step 6: Final answer
    x = 12,208.75

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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.