Home / 11,772.64-17,661.30-3,983.68

Finding the Fourth Proportional to 11,772.64, 17,661.30 and 3,983.68

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Solution

The fourth proportional to 11,772.64, 17,661.30 and 3,983.68 is: 5,976.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,772.64 : 17,661.30 = 3,983.68 : x
  2. Step 2: Convert to fraction form
    11,772.64/17,661.30 = 3,983.68/x
  3. Step 3: Cross multiply
    11,772.64x = 17,661.30 × 3,983.68
  4. Step 4: Simplify right side
    11,772.64x = 70,356,967.58
  5. Step 5: Solve for x
    x = 70,356,967.58/11,772.64
  6. Step 6: Final answer
    x = 5,976.31

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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.