Home / 19,126.80-28,653.66-11,209.86

Finding the Fourth Proportional to 19,126.80, 28,653.66 and 11,209.86

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Solution

The fourth proportional to 19,126.80, 28,653.66 and 11,209.86 is: 16,793.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,126.80 : 28,653.66 = 11,209.86 : x
  2. Step 2: Convert to fraction form
    19,126.80/28,653.66 = 11,209.86/x
  3. Step 3: Cross multiply
    19,126.80x = 28,653.66 × 11,209.86
  4. Step 4: Simplify right side
    19,126.80x = 321,203,517.09
  5. Step 5: Solve for x
    x = 321,203,517.09/19,126.80
  6. Step 6: Final answer
    x = 16,793.37

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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.