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Finding the Fourth Proportional to 12,650.20, 18,958.89 and 8,483.97

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Solution

The fourth proportional to 12,650.20, 18,958.89 and 8,483.97 is: 12,714.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,650.20 : 18,958.89 = 8,483.97 : x
  2. Step 2: Convert to fraction form
    12,650.20/18,958.89 = 8,483.97/x
  3. Step 3: Cross multiply
    12,650.20x = 18,958.89 × 8,483.97
  4. Step 4: Simplify right side
    12,650.20x = 160,846,653.99
  5. Step 5: Solve for x
    x = 160,846,653.99/12,650.20
  6. Step 6: Final answer
    x = 12,714.95

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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.