Home / 8,979.80-13,471.64-2,739.65

Finding the Fourth Proportional to 8,979.80, 13,471.64 and 2,739.65

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Solution

The fourth proportional to 8,979.80, 13,471.64 and 2,739.65 is: 4,110.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,979.80 : 13,471.64 = 2,739.65 : x
  2. Step 2: Convert to fraction form
    8,979.80/13,471.64 = 2,739.65/x
  3. Step 3: Cross multiply
    8,979.80x = 13,471.64 × 2,739.65
  4. Step 4: Simplify right side
    8,979.80x = 36,907,578.53
  5. Step 5: Solve for x
    x = 36,907,578.53/8,979.80
  6. Step 6: Final answer
    x = 4,110.07

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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.