Home / 10,979.44-16,467.48-3,186.64

Finding the Fourth Proportional to 10,979.44, 16,467.48 and 3,186.64

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Solution

The fourth proportional to 10,979.44, 16,467.48 and 3,186.64 is: 4,779.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,979.44 : 16,467.48 = 3,186.64 : x
  2. Step 2: Convert to fraction form
    10,979.44/16,467.48 = 3,186.64/x
  3. Step 3: Cross multiply
    10,979.44x = 16,467.48 × 3,186.64
  4. Step 4: Simplify right side
    10,979.44x = 52,475,930.47
  5. Step 5: Solve for x
    x = 52,475,930.47/10,979.44
  6. Step 6: Final answer
    x = 4,779.47

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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.