Home / 12,446.55-18,666.99-3,679.38

Finding the Fourth Proportional to 12,446.55, 18,666.99 and 3,679.38

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Solution

The fourth proportional to 12,446.55, 18,666.99 and 3,679.38 is: 5,518.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,446.55 : 18,666.99 = 3,679.38 : x
  2. Step 2: Convert to fraction form
    12,446.55/18,666.99 = 3,679.38/x
  3. Step 3: Cross multiply
    12,446.55x = 18,666.99 × 3,679.38
  4. Step 4: Simplify right side
    12,446.55x = 68,682,949.67
  5. Step 5: Solve for x
    x = 68,682,949.67/12,446.55
  6. Step 6: Final answer
    x = 5,518.23

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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.