Home / 14,689.82-21,997.20-8,108.66

Finding the Fourth Proportional to 14,689.82, 21,997.20 and 8,108.66

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Solution

The fourth proportional to 14,689.82, 21,997.20 and 8,108.66 is: 12,142.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,689.82 : 21,997.20 = 8,108.66 : x
  2. Step 2: Convert to fraction form
    14,689.82/21,997.20 = 8,108.66/x
  3. Step 3: Cross multiply
    14,689.82x = 21,997.20 × 8,108.66
  4. Step 4: Simplify right side
    14,689.82x = 178,367,815.75
  5. Step 5: Solve for x
    x = 178,367,815.75/14,689.82
  6. Step 6: Final answer
    x = 12,142.27

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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.