Home / 11,115.99-16,672.05-3,719.43

Finding the Fourth Proportional to 11,115.99, 16,672.05 and 3,719.43

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Solution

The fourth proportional to 11,115.99, 16,672.05 and 3,719.43 is: 5,578.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,115.99 : 16,672.05 = 3,719.43 : x
  2. Step 2: Convert to fraction form
    11,115.99/16,672.05 = 3,719.43/x
  3. Step 3: Cross multiply
    11,115.99x = 16,672.05 × 3,719.43
  4. Step 4: Simplify right side
    11,115.99x = 62,010,522.93
  5. Step 5: Solve for x
    x = 62,010,522.93/11,115.99
  6. Step 6: Final answer
    x = 5,578.50

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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.