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Finding the Fourth Proportional to 8,146.96, 12,221.96 and 3,704.94

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Solution

The fourth proportional to 8,146.96, 12,221.96 and 3,704.94 is: 5,558.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,146.96 : 12,221.96 = 3,704.94 : x
  2. Step 2: Convert to fraction form
    8,146.96/12,221.96 = 3,704.94/x
  3. Step 3: Cross multiply
    8,146.96x = 12,221.96 × 3,704.94
  4. Step 4: Simplify right side
    8,146.96x = 45,281,628.48
  5. Step 5: Solve for x
    x = 45,281,628.48/8,146.96
  6. Step 6: Final answer
    x = 5,558.10

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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.