Home / 8,979.89-13,464.32-3,427.26

Finding the Fourth Proportional to 8,979.89, 13,464.32 and 3,427.26

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Solution

The fourth proportional to 8,979.89, 13,464.32 and 3,427.26 is: 5,138.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,979.89 : 13,464.32 = 3,427.26 : x
  2. Step 2: Convert to fraction form
    8,979.89/13,464.32 = 3,427.26/x
  3. Step 3: Cross multiply
    8,979.89x = 13,464.32 × 3,427.26
  4. Step 4: Simplify right side
    8,979.89x = 46,145,708.23
  5. Step 5: Solve for x
    x = 46,145,708.23/8,979.89
  6. Step 6: Final answer
    x = 5,138.79

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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.