Home / 13,632.36-20,449.70-3,771.64

Finding the Fourth Proportional to 13,632.36, 20,449.70 and 3,771.64

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Solution

The fourth proportional to 13,632.36, 20,449.70 and 3,771.64 is: 5,657.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,632.36 : 20,449.70 = 3,771.64 : x
  2. Step 2: Convert to fraction form
    13,632.36/20,449.70 = 3,771.64/x
  3. Step 3: Cross multiply
    13,632.36x = 20,449.70 × 3,771.64
  4. Step 4: Simplify right side
    13,632.36x = 77,128,906.51
  5. Step 5: Solve for x
    x = 77,128,906.51/13,632.36
  6. Step 6: Final answer
    x = 5,657.78

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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.