Home / 19,274.57-28,916.11-8,190.73

Finding the Fourth Proportional to 19,274.57, 28,916.11 and 8,190.73

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Solution

The fourth proportional to 19,274.57, 28,916.11 and 8,190.73 is: 12,287.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,274.57 : 28,916.11 = 8,190.73 : x
  2. Step 2: Convert to fraction form
    19,274.57/28,916.11 = 8,190.73/x
  3. Step 3: Cross multiply
    19,274.57x = 28,916.11 × 8,190.73
  4. Step 4: Simplify right side
    19,274.57x = 236,844,049.66
  5. Step 5: Solve for x
    x = 236,844,049.66/19,274.57
  6. Step 6: Final answer
    x = 12,287.90

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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.