Home / 16,218.05-22,380.60-9,144.48

Finding the Fourth Proportional to 16,218.05, 22,380.60 and 9,144.48

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Solution

The fourth proportional to 16,218.05, 22,380.60 and 9,144.48 is: 12,619.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,218.05 : 22,380.60 = 9,144.48 : x
  2. Step 2: Convert to fraction form
    16,218.05/22,380.60 = 9,144.48/x
  3. Step 3: Cross multiply
    16,218.05x = 22,380.60 × 9,144.48
  4. Step 4: Simplify right side
    16,218.05x = 204,658,949.09
  5. Step 5: Solve for x
    x = 204,658,949.09/16,218.05
  6. Step 6: Final answer
    x = 12,619.21

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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.