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Finding the Fourth Proportional to 11,204.80, 16,823.40 and 8,450.80

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Solution

The fourth proportional to 11,204.80, 16,823.40 and 8,450.80 is: 12,688.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,204.80 : 16,823.40 = 8,450.80 : x
  2. Step 2: Convert to fraction form
    11,204.80/16,823.40 = 8,450.80/x
  3. Step 3: Cross multiply
    11,204.80x = 16,823.40 × 8,450.80
  4. Step 4: Simplify right side
    11,204.80x = 142,171,188.72
  5. Step 5: Solve for x
    x = 142,171,188.72/11,204.80
  6. Step 6: Final answer
    x = 12,688.42

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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.