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Finding the Fourth Proportional to 8,168.66, 12,255.03 and 2,622.56

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Solution

The fourth proportional to 8,168.66, 12,255.03 and 2,622.56 is: 3,934.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,168.66 : 12,255.03 = 2,622.56 : x
  2. Step 2: Convert to fraction form
    8,168.66/12,255.03 = 2,622.56/x
  3. Step 3: Cross multiply
    8,168.66x = 12,255.03 × 2,622.56
  4. Step 4: Simplify right side
    8,168.66x = 32,139,490.20
  5. Step 5: Solve for x
    x = 32,139,490.20/8,168.66
  6. Step 6: Final answer
    x = 3,934.49

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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.