Home / 13,626.54-20,439.81-3,765.87

Finding the Fourth Proportional to 13,626.54, 20,439.81 and 3,765.87

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Solution

The fourth proportional to 13,626.54, 20,439.81 and 3,765.87 is: 5,648.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,626.54 : 20,439.81 = 3,765.87 : x
  2. Step 2: Convert to fraction form
    13,626.54/20,439.81 = 3,765.87/x
  3. Step 3: Cross multiply
    13,626.54x = 20,439.81 × 3,765.87
  4. Step 4: Simplify right side
    13,626.54x = 76,973,667.28
  5. Step 5: Solve for x
    x = 76,973,667.28/13,626.54
  6. Step 6: Final answer
    x = 5,648.81

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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.