Home / 13,766.49-20,649.75-3,378.24

Finding the Fourth Proportional to 13,766.49, 20,649.75 and 3,378.24

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Solution

The fourth proportional to 13,766.49, 20,649.75 and 3,378.24 is: 5,067.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,766.49 : 20,649.75 = 3,378.24 : x
  2. Step 2: Convert to fraction form
    13,766.49/20,649.75 = 3,378.24/x
  3. Step 3: Cross multiply
    13,766.49x = 20,649.75 × 3,378.24
  4. Step 4: Simplify right side
    13,766.49x = 69,759,811.44
  5. Step 5: Solve for x
    x = 69,759,811.44/13,766.49
  6. Step 6: Final answer
    x = 5,067.36

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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.