Home / 8,757.18-13,136.97-3,209.22

Finding the Fourth Proportional to 8,757.18, 13,136.97 and 3,209.22

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Solution

The fourth proportional to 8,757.18, 13,136.97 and 3,209.22 is: 4,814.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,757.18 : 13,136.97 = 3,209.22 : x
  2. Step 2: Convert to fraction form
    8,757.18/13,136.97 = 3,209.22/x
  3. Step 3: Cross multiply
    8,757.18x = 13,136.97 × 3,209.22
  4. Step 4: Simplify right side
    8,757.18x = 42,159,426.86
  5. Step 5: Solve for x
    x = 42,159,426.86/8,757.18
  6. Step 6: Final answer
    x = 4,814.27

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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.