Home / 19,163.90-28,744.05-8,634.62

Finding the Fourth Proportional to 19,163.90, 28,744.05 and 8,634.62

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Solution

The fourth proportional to 19,163.90, 28,744.05 and 8,634.62 is: 12,951.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,163.90 : 28,744.05 = 8,634.62 : x
  2. Step 2: Convert to fraction form
    19,163.90/28,744.05 = 8,634.62/x
  3. Step 3: Cross multiply
    19,163.90x = 28,744.05 × 8,634.62
  4. Step 4: Simplify right side
    19,163.90x = 248,193,949.01
  5. Step 5: Solve for x
    x = 248,193,949.01/19,163.90
  6. Step 6: Final answer
    x = 12,951.12

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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.