Home / 13,636.32-20,449.44-10,720.32

Finding the Fourth Proportional to 13,636.32, 20,449.44 and 10,720.32

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Solution

The fourth proportional to 13,636.32, 20,449.44 and 10,720.32 is: 16,076.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,636.32 : 20,449.44 = 10,720.32 : x
  2. Step 2: Convert to fraction form
    13,636.32/20,449.44 = 10,720.32/x
  3. Step 3: Cross multiply
    13,636.32x = 20,449.44 × 10,720.32
  4. Step 4: Simplify right side
    13,636.32x = 219,224,540.62
  5. Step 5: Solve for x
    x = 219,224,540.62/13,636.32
  6. Step 6: Final answer
    x = 16,076.52

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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.