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Finding the Fourth Proportional to 17,887.03, 26,811.19 and 7,882.85

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Solution

The fourth proportional to 17,887.03, 26,811.19 and 7,882.85 is: 11,815.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,887.03 : 26,811.19 = 7,882.85 : x
  2. Step 2: Convert to fraction form
    17,887.03/26,811.19 = 7,882.85/x
  3. Step 3: Cross multiply
    17,887.03x = 26,811.19 × 7,882.85
  4. Step 4: Simplify right side
    17,887.03x = 211,348,589.09
  5. Step 5: Solve for x
    x = 211,348,589.09/17,887.03
  6. Step 6: Final answer
    x = 11,815.75

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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.