Home / 11,981.64-17,973.18-3,662.22

Finding the Fourth Proportional to 11,981.64, 17,973.18 and 3,662.22

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Solution

The fourth proportional to 11,981.64, 17,973.18 and 3,662.22 is: 5,493.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,981.64 : 17,973.18 = 3,662.22 : x
  2. Step 2: Convert to fraction form
    11,981.64/17,973.18 = 3,662.22/x
  3. Step 3: Cross multiply
    11,981.64x = 17,973.18 × 3,662.22
  4. Step 4: Simplify right side
    11,981.64x = 65,821,739.26
  5. Step 5: Solve for x
    x = 65,821,739.26/11,981.64
  6. Step 6: Final answer
    x = 5,493.55

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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.