Home / 13,979.44-20,964.97-4,116.34

Finding the Fourth Proportional to 13,979.44, 20,964.97 and 4,116.34

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Solution

The fourth proportional to 13,979.44, 20,964.97 and 4,116.34 is: 6,173.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,979.44 : 20,964.97 = 4,116.34 : x
  2. Step 2: Convert to fraction form
    13,979.44/20,964.97 = 4,116.34/x
  3. Step 3: Cross multiply
    13,979.44x = 20,964.97 × 4,116.34
  4. Step 4: Simplify right side
    13,979.44x = 86,298,944.61
  5. Step 5: Solve for x
    x = 86,298,944.61/13,979.44
  6. Step 6: Final answer
    x = 6,173.28

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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.