Home / 19,163.62-28,706.55-12,592.90

Finding the Fourth Proportional to 19,163.62, 28,706.55 and 12,592.90

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Solution

The fourth proportional to 19,163.62, 28,706.55 and 12,592.90 is: 18,863.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,163.62 : 28,706.55 = 12,592.90 : x
  2. Step 2: Convert to fraction form
    19,163.62/28,706.55 = 12,592.90/x
  3. Step 3: Cross multiply
    19,163.62x = 28,706.55 × 12,592.90
  4. Step 4: Simplify right side
    19,163.62x = 361,498,713.50
  5. Step 5: Solve for x
    x = 361,498,713.50/19,163.62
  6. Step 6: Final answer
    x = 18,863.80

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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.