Home / 19,188.50-28,781.43-11,794.10

Finding the Fourth Proportional to 19,188.50, 28,781.43 and 11,794.10

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Solution

The fourth proportional to 19,188.50, 28,781.43 and 11,794.10 is: 17,690.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,188.50 : 28,781.43 = 11,794.10 : x
  2. Step 2: Convert to fraction form
    19,188.50/28,781.43 = 11,794.10/x
  3. Step 3: Cross multiply
    19,188.50x = 28,781.43 × 11,794.10
  4. Step 4: Simplify right side
    19,188.50x = 339,451,063.56
  5. Step 5: Solve for x
    x = 339,451,063.56/19,188.50
  6. Step 6: Final answer
    x = 17,690.34

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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.