Home / 13,626.54-20,439.76-3,765.80

Finding the Fourth Proportional to 13,626.54, 20,439.76 and 3,765.80

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Solution

The fourth proportional to 13,626.54, 20,439.76 and 3,765.80 is: 5,648.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,626.54 : 20,439.76 = 3,765.80 : x
  2. Step 2: Convert to fraction form
    13,626.54/20,439.76 = 3,765.80/x
  3. Step 3: Cross multiply
    13,626.54x = 20,439.76 × 3,765.80
  4. Step 4: Simplify right side
    13,626.54x = 76,972,048.21
  5. Step 5: Solve for x
    x = 76,972,048.21/13,626.54
  6. Step 6: Final answer
    x = 5,648.69

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1.5x scale

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.