Home / 13,626.72-20,439.68-3,766.59

Finding the Fourth Proportional to 13,626.72, 20,439.68 and 3,766.59

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Solution

The fourth proportional to 13,626.72, 20,439.68 and 3,766.59 is: 5,649.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,626.72 : 20,439.68 = 3,766.59 : x
  2. Step 2: Convert to fraction form
    13,626.72/20,439.68 = 3,766.59/x
  3. Step 3: Cross multiply
    13,626.72x = 20,439.68 × 3,766.59
  4. Step 4: Simplify right side
    13,626.72x = 76,987,875.46
  5. Step 5: Solve for x
    x = 76,987,875.46/13,626.72
  6. Step 6: Final answer
    x = 5,649.77

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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.