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Finding the Fourth Proportional to 16,822.70, 25,234.05 and 10,917.80

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Solution

The fourth proportional to 16,822.70, 25,234.05 and 10,917.80 is: 16,376.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,822.70 : 25,234.05 = 10,917.80 : x
  2. Step 2: Convert to fraction form
    16,822.70/25,234.05 = 10,917.80/x
  3. Step 3: Cross multiply
    16,822.70x = 25,234.05 × 10,917.80
  4. Step 4: Simplify right side
    16,822.70x = 275,500,311.09
  5. Step 5: Solve for x
    x = 275,500,311.09/16,822.70
  6. Step 6: Final answer
    x = 16,376.70

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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.