Home / 13,449.44-20,171.28-4,213.28

Finding the Fourth Proportional to 13,449.44, 20,171.28 and 4,213.28

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Solution

The fourth proportional to 13,449.44, 20,171.28 and 4,213.28 is: 6,319.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,449.44 : 20,171.28 = 4,213.28 : x
  2. Step 2: Convert to fraction form
    13,449.44/20,171.28 = 4,213.28/x
  3. Step 3: Cross multiply
    13,449.44x = 20,171.28 × 4,213.28
  4. Step 4: Simplify right side
    13,449.44x = 84,987,250.60
  5. Step 5: Solve for x
    x = 84,987,250.60/13,449.44
  6. Step 6: Final answer
    x = 6,319.02

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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.