Home / 13,600.26-20,396.34-5,281.56

Finding the Fourth Proportional to 13,600.26, 20,396.34 and 5,281.56

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Solution

The fourth proportional to 13,600.26, 20,396.34 and 5,281.56 is: 7,920.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,600.26 : 20,396.34 = 5,281.56 : x
  2. Step 2: Convert to fraction form
    13,600.26/20,396.34 = 5,281.56/x
  3. Step 3: Cross multiply
    13,600.26x = 20,396.34 × 5,281.56
  4. Step 4: Simplify right side
    13,600.26x = 107,724,493.49
  5. Step 5: Solve for x
    x = 107,724,493.49/13,600.26
  6. Step 6: Final answer
    x = 7,920.77

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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.