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Finding the Fourth Proportional to 8,786.76, 13,160.54 and 6,798.87

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Solution

The fourth proportional to 8,786.76, 13,160.54 and 6,798.87 is: 10,183.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,786.76 : 13,160.54 = 6,798.87 : x
  2. Step 2: Convert to fraction form
    8,786.76/13,160.54 = 6,798.87/x
  3. Step 3: Cross multiply
    8,786.76x = 13,160.54 × 6,798.87
  4. Step 4: Simplify right side
    8,786.76x = 89,476,800.59
  5. Step 5: Solve for x
    x = 89,476,800.59/8,786.76
  6. Step 6: Final answer
    x = 10,183.14

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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.