Home / 11,982.76-17,979.86-5,410.96

Finding the Fourth Proportional to 11,982.76, 17,979.86 and 5,410.96

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Solution

The fourth proportional to 11,982.76, 17,979.86 and 5,410.96 is: 8,119.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,982.76 : 17,979.86 = 5,410.96 : x
  2. Step 2: Convert to fraction form
    11,982.76/17,979.86 = 5,410.96/x
  3. Step 3: Cross multiply
    11,982.76x = 17,979.86 × 5,410.96
  4. Step 4: Simplify right side
    11,982.76x = 97,288,303.27
  5. Step 5: Solve for x
    x = 97,288,303.27/11,982.76
  6. Step 6: Final answer
    x = 8,119.02

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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.