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Finding the Fourth Proportional to 16,319, 22,520.22 and 8,867

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Solution

The fourth proportional to 16,319, 22,520.22 and 8,867 is: 12,236.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,319 : 22,520.22 = 8,867 : x
  2. Step 2: Convert to fraction form
    16,319/22,520.22 = 8,867/x
  3. Step 3: Cross multiply
    16,319x = 22,520.22 × 8,867
  4. Step 4: Simplify right side
    16,319x = 199,686,790.74
  5. Step 5: Solve for x
    x = 199,686,790.74/16,319
  6. Step 6: Final answer
    x = 12,236.46

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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.