Home / 8,178.80-12,268.89-2,914.97

Finding the Fourth Proportional to 8,178.80, 12,268.89 and 2,914.97

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Solution

The fourth proportional to 8,178.80, 12,268.89 and 2,914.97 is: 4,372.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,178.80 : 12,268.89 = 2,914.97 : x
  2. Step 2: Convert to fraction form
    8,178.80/12,268.89 = 2,914.97/x
  3. Step 3: Cross multiply
    8,178.80x = 12,268.89 × 2,914.97
  4. Step 4: Simplify right side
    8,178.80x = 35,763,384.94
  5. Step 5: Solve for x
    x = 35,763,384.94/8,178.80
  6. Step 6: Final answer
    x = 4,372.70

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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.