Home / 16,278.10-22,464.20-9,107.78

Finding the Fourth Proportional to 16,278.10, 22,464.20 and 9,107.78

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Solution

The fourth proportional to 16,278.10, 22,464.20 and 9,107.78 is: 12,568.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,278.10 : 22,464.20 = 9,107.78 : x
  2. Step 2: Convert to fraction form
    16,278.10/22,464.20 = 9,107.78/x
  3. Step 3: Cross multiply
    16,278.10x = 22,464.20 × 9,107.78
  4. Step 4: Simplify right side
    16,278.10x = 204,598,991.48
  5. Step 5: Solve for x
    x = 204,598,991.48/16,278.10
  6. Step 6: Final answer
    x = 12,568.97

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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.