Home / 13,409.88-20,110.76-4,049.11

Finding the Fourth Proportional to 13,409.88, 20,110.76 and 4,049.11

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Solution

The fourth proportional to 13,409.88, 20,110.76 and 4,049.11 is: 6,072.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,409.88 : 20,110.76 = 4,049.11 : x
  2. Step 2: Convert to fraction form
    13,409.88/20,110.76 = 4,049.11/x
  3. Step 3: Cross multiply
    13,409.88x = 20,110.76 × 4,049.11
  4. Step 4: Simplify right side
    13,409.88x = 81,430,679.42
  5. Step 5: Solve for x
    x = 81,430,679.42/13,409.88
  6. Step 6: Final answer
    x = 6,072.44

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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.