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Finding the Fourth Proportional to 8,176.71, 12,262.44 and 2,628.71

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Solution

The fourth proportional to 8,176.71, 12,262.44 and 2,628.71 is: 3,942.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,176.71 : 12,262.44 = 2,628.71 : x
  2. Step 2: Convert to fraction form
    8,176.71/12,262.44 = 2,628.71/x
  3. Step 3: Cross multiply
    8,176.71x = 12,262.44 × 2,628.71
  4. Step 4: Simplify right side
    8,176.71x = 32,234,337.34
  5. Step 5: Solve for x
    x = 32,234,337.34/8,176.71
  6. Step 6: Final answer
    x = 3,942.21

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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.