Home / 11,378.16-17,071.64-3,983.44

Finding the Fourth Proportional to 11,378.16, 17,071.64 and 3,983.44

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Solution

The fourth proportional to 11,378.16, 17,071.64 and 3,983.44 is: 5,976.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,378.16 : 17,071.64 = 3,983.44 : x
  2. Step 2: Convert to fraction form
    11,378.16/17,071.64 = 3,983.44/x
  3. Step 3: Cross multiply
    11,378.16x = 17,071.64 × 3,983.44
  4. Step 4: Simplify right side
    11,378.16x = 68,003,853.64
  5. Step 5: Solve for x
    x = 68,003,853.64/11,378.16
  6. Step 6: Final answer
    x = 5,976.70

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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.