Home / 19,178.58-28,778.21-8,092.95

Finding the Fourth Proportional to 19,178.58, 28,778.21 and 8,092.95

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Solution

The fourth proportional to 19,178.58, 28,778.21 and 8,092.95 is: 12,143.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,178.58 : 28,778.21 = 8,092.95 : x
  2. Step 2: Convert to fraction form
    19,178.58/28,778.21 = 8,092.95/x
  3. Step 3: Cross multiply
    19,178.58x = 28,778.21 × 8,092.95
  4. Step 4: Simplify right side
    19,178.58x = 232,900,614.62
  5. Step 5: Solve for x
    x = 232,900,614.62/19,178.58
  6. Step 6: Final answer
    x = 12,143.79

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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.