Home / 13,735.87-20,605.41-4,372.61

Finding the Fourth Proportional to 13,735.87, 20,605.41 and 4,372.61

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Solution

The fourth proportional to 13,735.87, 20,605.41 and 4,372.61 is: 6,559.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,735.87 : 20,605.41 = 4,372.61 : x
  2. Step 2: Convert to fraction form
    13,735.87/20,605.41 = 4,372.61/x
  3. Step 3: Cross multiply
    13,735.87x = 20,605.41 × 4,372.61
  4. Step 4: Simplify right side
    13,735.87x = 90,099,318.79
  5. Step 5: Solve for x
    x = 90,099,318.79/13,735.87
  6. Step 6: Final answer
    x = 6,559.42

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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.