Home / 16,936.80-23,361.12-11,911.56

Finding the Fourth Proportional to 16,936.80, 23,361.12 and 11,911.56

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Solution

The fourth proportional to 16,936.80, 23,361.12 and 11,911.56 is: 16,429.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,936.80 : 23,361.12 = 11,911.56 : x
  2. Step 2: Convert to fraction form
    16,936.80/23,361.12 = 11,911.56/x
  3. Step 3: Cross multiply
    16,936.80x = 23,361.12 × 11,911.56
  4. Step 4: Simplify right side
    16,936.80x = 278,267,382.55
  5. Step 5: Solve for x
    x = 278,267,382.55/16,936.80
  6. Step 6: Final answer
    x = 16,429.75

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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.