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Finding the Fourth Proportional to 8,096.80, 12,145.20 and 4,808.20

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Solution

The fourth proportional to 8,096.80, 12,145.20 and 4,808.20 is: 7,212.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,096.80 : 12,145.20 = 4,808.20 : x
  2. Step 2: Convert to fraction form
    8,096.80/12,145.20 = 4,808.20/x
  3. Step 3: Cross multiply
    8,096.80x = 12,145.20 × 4,808.20
  4. Step 4: Simplify right side
    8,096.80x = 58,396,550.64
  5. Step 5: Solve for x
    x = 58,396,550.64/8,096.80
  6. Step 6: Final answer
    x = 7,212.30

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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.