Home / 17,678.28-26,517.62-5,198.55

Finding the Fourth Proportional to 17,678.28, 26,517.62 and 5,198.55

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Solution

The fourth proportional to 17,678.28, 26,517.62 and 5,198.55 is: 7,797.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,678.28 : 26,517.62 = 5,198.55 : x
  2. Step 2: Convert to fraction form
    17,678.28/26,517.62 = 5,198.55/x
  3. Step 3: Cross multiply
    17,678.28x = 26,517.62 × 5,198.55
  4. Step 4: Simplify right side
    17,678.28x = 137,853,173.45
  5. Step 5: Solve for x
    x = 137,853,173.45/17,678.28
  6. Step 6: Final answer
    x = 7,797.88

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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.