Home / 18,965.80-28,414.94-11,566.44

Finding the Fourth Proportional to 18,965.80, 28,414.94 and 11,566.44

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Solution

The fourth proportional to 18,965.80, 28,414.94 and 11,566.44 is: 17,329.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,965.80 : 28,414.94 = 11,566.44 : x
  2. Step 2: Convert to fraction form
    18,965.80/28,414.94 = 11,566.44/x
  3. Step 3: Cross multiply
    18,965.80x = 28,414.94 × 11,566.44
  4. Step 4: Simplify right side
    18,965.80x = 328,659,698.61
  5. Step 5: Solve for x
    x = 328,659,698.61/18,965.80
  6. Step 6: Final answer
    x = 17,329.07

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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.