Home / 13,908.22-20,862.14-3,378.32

Finding the Fourth Proportional to 13,908.22, 20,862.14 and 3,378.32

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Solution

The fourth proportional to 13,908.22, 20,862.14 and 3,378.32 is: 5,067.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,908.22 : 20,862.14 = 3,378.32 : x
  2. Step 2: Convert to fraction form
    13,908.22/20,862.14 = 3,378.32/x
  3. Step 3: Cross multiply
    13,908.22x = 20,862.14 × 3,378.32
  4. Step 4: Simplify right side
    13,908.22x = 70,478,984.80
  5. Step 5: Solve for x
    x = 70,478,984.80/13,908.22
  6. Step 6: Final answer
    x = 5,067.43

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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.