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Finding the Fourth Proportional to 8,366.81, 12,542.06 and 3,983.09

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Solution

The fourth proportional to 8,366.81, 12,542.06 and 3,983.09 is: 5,970.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,366.81 : 12,542.06 = 3,983.09 : x
  2. Step 2: Convert to fraction form
    8,366.81/12,542.06 = 3,983.09/x
  3. Step 3: Cross multiply
    8,366.81x = 12,542.06 × 3,983.09
  4. Step 4: Simplify right side
    8,366.81x = 49,956,133.85
  5. Step 5: Solve for x
    x = 49,956,133.85/8,366.81
  6. Step 6: Final answer
    x = 5,970.75

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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.