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Finding the Fourth Proportional to 8,786.70, 13,163.49 and 4,339.16

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Solution

The fourth proportional to 8,786.70, 13,163.49 and 4,339.16 is: 6,500.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,786.70 : 13,163.49 = 4,339.16 : x
  2. Step 2: Convert to fraction form
    8,786.70/13,163.49 = 4,339.16/x
  3. Step 3: Cross multiply
    8,786.70x = 13,163.49 × 4,339.16
  4. Step 4: Simplify right side
    8,786.70x = 57,118,432.64
  5. Step 5: Solve for x
    x = 57,118,432.64/8,786.70
  6. Step 6: Final answer
    x = 6,500.56

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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.