Home / 11,972.64-17,959.68-3,653.22

Finding the Fourth Proportional to 11,972.64, 17,959.68 and 3,653.22

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Solution

The fourth proportional to 11,972.64, 17,959.68 and 3,653.22 is: 5,480.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,972.64 : 17,959.68 = 3,653.22 : x
  2. Step 2: Convert to fraction form
    11,972.64/17,959.68 = 3,653.22/x
  3. Step 3: Cross multiply
    11,972.64x = 17,959.68 × 3,653.22
  4. Step 4: Simplify right side
    11,972.64x = 65,610,662.17
  5. Step 5: Solve for x
    x = 65,610,662.17/11,972.64
  6. Step 6: Final answer
    x = 5,480.05

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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.