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Finding the Fourth Proportional to 14,119.11, 19,481.57 and 8,375.50

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Solution

The fourth proportional to 14,119.11, 19,481.57 and 8,375.50 is: 11,556.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,119.11 : 19,481.57 = 8,375.50 : x
  2. Step 2: Convert to fraction form
    14,119.11/19,481.57 = 8,375.50/x
  3. Step 3: Cross multiply
    14,119.11x = 19,481.57 × 8,375.50
  4. Step 4: Simplify right side
    14,119.11x = 163,167,889.54
  5. Step 5: Solve for x
    x = 163,167,889.54/14,119.11
  6. Step 6: Final answer
    x = 11,556.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.