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Finding the Fourth Proportional to 14,481.55, 19,982.87 and 8,107.26

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Solution

The fourth proportional to 14,481.55, 19,982.87 and 8,107.26 is: 11,187.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,481.55 : 19,982.87 = 8,107.26 : x
  2. Step 2: Convert to fraction form
    14,481.55/19,982.87 = 8,107.26/x
  3. Step 3: Cross multiply
    14,481.55x = 19,982.87 × 8,107.26
  4. Step 4: Simplify right side
    14,481.55x = 162,006,237.57
  5. Step 5: Solve for x
    x = 162,006,237.57/14,481.55
  6. Step 6: Final answer
    x = 11,187.08

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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.