Home / 13,720.83-20,586.17-5,396.23

Finding the Fourth Proportional to 13,720.83, 20,586.17 and 5,396.23

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Solution

The fourth proportional to 13,720.83, 20,586.17 and 5,396.23 is: 8,096.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,720.83 : 20,586.17 = 5,396.23 : x
  2. Step 2: Convert to fraction form
    13,720.83/20,586.17 = 5,396.23/x
  3. Step 3: Cross multiply
    13,720.83x = 20,586.17 × 5,396.23
  4. Step 4: Simplify right side
    13,720.83x = 111,087,708.14
  5. Step 5: Solve for x
    x = 111,087,708.14/13,720.83
  6. Step 6: Final answer
    x = 8,096.28

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.