Home / 19,191.43-28,778.39-8,092.10

Finding the Fourth Proportional to 19,191.43, 28,778.39 and 8,092.10

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Solution

The fourth proportional to 19,191.43, 28,778.39 and 8,092.10 is: 12,134.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,191.43 : 28,778.39 = 8,092.10 : x
  2. Step 2: Convert to fraction form
    19,191.43/28,778.39 = 8,092.10/x
  3. Step 3: Cross multiply
    19,191.43x = 28,778.39 × 8,092.10
  4. Step 4: Simplify right side
    19,191.43x = 232,877,671.55
  5. Step 5: Solve for x
    x = 232,877,671.55/19,191.43
  6. Step 6: Final answer
    x = 12,134.46

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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.