Home / 8,979.11-13,470.35-2,739.68

Finding the Fourth Proportional to 8,979.11, 13,470.35 and 2,739.68

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Solution

The fourth proportional to 8,979.11, 13,470.35 and 2,739.68 is: 4,110.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,979.11 : 13,470.35 = 2,739.68 : x
  2. Step 2: Convert to fraction form
    8,979.11/13,470.35 = 2,739.68/x
  3. Step 3: Cross multiply
    8,979.11x = 13,470.35 × 2,739.68
  4. Step 4: Simplify right side
    8,979.11x = 36,904,448.49
  5. Step 5: Solve for x
    x = 36,904,448.49/8,979.11
  6. Step 6: Final answer
    x = 4,110.03

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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.