Home / 8,109.20-12,167.66-3,669.99

Finding the Fourth Proportional to 8,109.20, 12,167.66 and 3,669.99

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Solution

The fourth proportional to 8,109.20, 12,167.66 and 3,669.99 is: 5,506.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,109.20 : 12,167.66 = 3,669.99 : x
  2. Step 2: Convert to fraction form
    8,109.20/12,167.66 = 3,669.99/x
  3. Step 3: Cross multiply
    8,109.20x = 12,167.66 × 3,669.99
  4. Step 4: Simplify right side
    8,109.20x = 44,655,172.17
  5. Step 5: Solve for x
    x = 44,655,172.17/8,109.20
  6. Step 6: Final answer
    x = 5,506.73

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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.