Home / 8,682.21-13,018.68-2,757.50

Finding the Fourth Proportional to 8,682.21, 13,018.68 and 2,757.50

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Solution

The fourth proportional to 8,682.21, 13,018.68 and 2,757.50 is: 4,134.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,682.21 : 13,018.68 = 2,757.50 : x
  2. Step 2: Convert to fraction form
    8,682.21/13,018.68 = 2,757.50/x
  3. Step 3: Cross multiply
    8,682.21x = 13,018.68 × 2,757.50
  4. Step 4: Simplify right side
    8,682.21x = 35,898,945.01
  5. Step 5: Solve for x
    x = 35,898,945.01/8,682.21
  6. Step 6: Final answer
    x = 4,134.77

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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.