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Finding the Fourth Proportional to 8,850.96, 12,226.68 and 8,384.40

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Solution

The fourth proportional to 8,850.96, 12,226.68 and 8,384.40 is: 11,582.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,850.96 : 12,226.68 = 8,384.40 : x
  2. Step 2: Convert to fraction form
    8,850.96/12,226.68 = 8,384.40/x
  3. Step 3: Cross multiply
    8,850.96x = 12,226.68 × 8,384.40
  4. Step 4: Simplify right side
    8,850.96x = 102,513,375.79
  5. Step 5: Solve for x
    x = 102,513,375.79/8,850.96
  6. Step 6: Final answer
    x = 11,582.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.