Home / 13,626.33-20,439.54-3,766.40

Finding the Fourth Proportional to 13,626.33, 20,439.54 and 3,766.40

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Solution

The fourth proportional to 13,626.33, 20,439.54 and 3,766.40 is: 5,649.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,626.33 : 20,439.54 = 3,766.40 : x
  2. Step 2: Convert to fraction form
    13,626.33/20,439.54 = 3,766.40/x
  3. Step 3: Cross multiply
    13,626.33x = 20,439.54 × 3,766.40
  4. Step 4: Simplify right side
    13,626.33x = 76,983,457.91
  5. Step 5: Solve for x
    x = 76,983,457.91/13,626.33
  6. Step 6: Final answer
    x = 5,649.61

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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.