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Finding the Fourth Proportional to 8,266.30, 12,400.22 and 2,719.65

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Solution

The fourth proportional to 8,266.30, 12,400.22 and 2,719.65 is: 4,079.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,266.30 : 12,400.22 = 2,719.65 : x
  2. Step 2: Convert to fraction form
    8,266.30/12,400.22 = 2,719.65/x
  3. Step 3: Cross multiply
    8,266.30x = 12,400.22 × 2,719.65
  4. Step 4: Simplify right side
    8,266.30x = 33,724,258.32
  5. Step 5: Solve for x
    x = 33,724,258.32/8,266.30
  6. Step 6: Final answer
    x = 4,079.73

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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.