Home / 8,786.72-13,178.17-2,783.27

Finding the Fourth Proportional to 8,786.72, 13,178.17 and 2,783.27

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Solution

The fourth proportional to 8,786.72, 13,178.17 and 2,783.27 is: 4,174.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,786.72 : 13,178.17 = 2,783.27 : x
  2. Step 2: Convert to fraction form
    8,786.72/13,178.17 = 2,783.27/x
  3. Step 3: Cross multiply
    8,786.72x = 13,178.17 × 2,783.27
  4. Step 4: Simplify right side
    8,786.72x = 36,678,405.22
  5. Step 5: Solve for x
    x = 36,678,405.22/8,786.72
  6. Step 6: Final answer
    x = 4,174.30

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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.