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Finding the Fourth Proportional to 17,110.10, 25,665.15 and 11,861.30

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Solution

The fourth proportional to 17,110.10, 25,665.15 and 11,861.30 is: 17,791.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,110.10 : 25,665.15 = 11,861.30 : x
  2. Step 2: Convert to fraction form
    17,110.10/25,665.15 = 11,861.30/x
  3. Step 3: Cross multiply
    17,110.10x = 25,665.15 × 11,861.30
  4. Step 4: Simplify right side
    17,110.10x = 304,422,043.70
  5. Step 5: Solve for x
    x = 304,422,043.70/17,110.10
  6. Step 6: Final answer
    x = 17,791.95

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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.