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Finding the Fourth Proportional to 8,168.81, 12,252.87 and 2,622.47

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Solution

The fourth proportional to 8,168.81, 12,252.87 and 2,622.47 is: 3,933.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,168.81 : 12,252.87 = 2,622.47 : x
  2. Step 2: Convert to fraction form
    8,168.81/12,252.87 = 2,622.47/x
  3. Step 3: Cross multiply
    8,168.81x = 12,252.87 × 2,622.47
  4. Step 4: Simplify right side
    8,168.81x = 32,132,722.72
  5. Step 5: Solve for x
    x = 32,132,722.72/8,168.81
  6. Step 6: Final answer
    x = 3,933.59

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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.