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Finding the Fourth Proportional to 18,520.70, 27,793.20 and 10,623.20

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Solution

The fourth proportional to 18,520.70, 27,793.20 and 10,623.20 is: 15,941.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,520.70 : 27,793.20 = 10,623.20 : x
  2. Step 2: Convert to fraction form
    18,520.70/27,793.20 = 10,623.20/x
  3. Step 3: Cross multiply
    18,520.70x = 27,793.20 × 10,623.20
  4. Step 4: Simplify right side
    18,520.70x = 295,252,722.24
  5. Step 5: Solve for x
    x = 295,252,722.24/18,520.70
  6. Step 6: Final answer
    x = 15,941.77

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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.