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Finding the Fourth Proportional to 18,589.26, 27,892.07 and 7,517.55

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Solution

The fourth proportional to 18,589.26, 27,892.07 and 7,517.55 is: 11,279.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,589.26 : 27,892.07 = 7,517.55 : x
  2. Step 2: Convert to fraction form
    18,589.26/27,892.07 = 7,517.55/x
  3. Step 3: Cross multiply
    18,589.26x = 27,892.07 × 7,517.55
  4. Step 4: Simplify right side
    18,589.26x = 209,679,993.24
  5. Step 5: Solve for x
    x = 209,679,993.24/18,589.26
  6. Step 6: Final answer
    x = 11,279.63

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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.