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Finding the Fourth Proportional to 8,786.97, 13,171.19 and 6,012.90

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Solution

The fourth proportional to 8,786.97, 13,171.19 and 6,012.90 is: 9,013.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,786.97 : 13,171.19 = 6,012.90 : x
  2. Step 2: Convert to fraction form
    8,786.97/13,171.19 = 6,012.90/x
  3. Step 3: Cross multiply
    8,786.97x = 13,171.19 × 6,012.90
  4. Step 4: Simplify right side
    8,786.97x = 79,197,018.29
  5. Step 5: Solve for x
    x = 79,197,018.29/8,786.97
  6. Step 6: Final answer
    x = 9,013.01

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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.