Home / 13,729.30-20,586.14-5,404.81

Finding the Fourth Proportional to 13,729.30, 20,586.14 and 5,404.81

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Solution

The fourth proportional to 13,729.30, 20,586.14 and 5,404.81 is: 8,104.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,729.30 : 20,586.14 = 5,404.81 : x
  2. Step 2: Convert to fraction form
    13,729.30/20,586.14 = 5,404.81/x
  3. Step 3: Cross multiply
    13,729.30x = 20,586.14 × 5,404.81
  4. Step 4: Simplify right side
    13,729.30x = 111,264,137.38
  5. Step 5: Solve for x
    x = 111,264,137.38/13,729.30
  6. Step 6: Final answer
    x = 8,104.14

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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.