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Finding the Fourth Proportional to 11,909.08, 17,858.44 and 5,245.44

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Solution

The fourth proportional to 11,909.08, 17,858.44 and 5,245.44 is: 7,865.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,909.08 : 17,858.44 = 5,245.44 : x
  2. Step 2: Convert to fraction form
    11,909.08/17,858.44 = 5,245.44/x
  3. Step 3: Cross multiply
    11,909.08x = 17,858.44 × 5,245.44
  4. Step 4: Simplify right side
    11,909.08x = 93,675,375.51
  5. Step 5: Solve for x
    x = 93,675,375.51/11,909.08
  6. Step 6: Final answer
    x = 7,865.88

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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.