Home / 8,786.55-13,178.36-3,854.87

Finding the Fourth Proportional to 8,786.55, 13,178.36 and 3,854.87

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Solution

The fourth proportional to 8,786.55, 13,178.36 and 3,854.87 is: 5,781.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,786.55 : 13,178.36 = 3,854.87 : x
  2. Step 2: Convert to fraction form
    8,786.55/13,178.36 = 3,854.87/x
  3. Step 3: Cross multiply
    8,786.55x = 13,178.36 × 3,854.87
  4. Step 4: Simplify right side
    8,786.55x = 50,800,857.78
  5. Step 5: Solve for x
    x = 50,800,857.78/8,786.55
  6. Step 6: Final answer
    x = 5,781.66

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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.