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Finding the Fourth Proportional to 8,809.43, 13,198.74 and 7,338.11

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Solution

The fourth proportional to 8,809.43, 13,198.74 and 7,338.11 is: 10,994.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,809.43 : 13,198.74 = 7,338.11 : x
  2. Step 2: Convert to fraction form
    8,809.43/13,198.74 = 7,338.11/x
  3. Step 3: Cross multiply
    8,809.43x = 13,198.74 × 7,338.11
  4. Step 4: Simplify right side
    8,809.43x = 96,853,739.99
  5. Step 5: Solve for x
    x = 96,853,739.99/8,809.43
  6. Step 6: Final answer
    x = 10,994.33

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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.