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Finding the Fourth Proportional to 8,975.80, 13,463.70 and 8,198.20

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Solution

The fourth proportional to 8,975.80, 13,463.70 and 8,198.20 is: 12,297.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,975.80 : 13,463.70 = 8,198.20 : x
  2. Step 2: Convert to fraction form
    8,975.80/13,463.70 = 8,198.20/x
  3. Step 3: Cross multiply
    8,975.80x = 13,463.70 × 8,198.20
  4. Step 4: Simplify right side
    8,975.80x = 110,378,105.34
  5. Step 5: Solve for x
    x = 110,378,105.34/8,975.80
  6. Step 6: Final answer
    x = 12,297.30

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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.