Home / 11,943.24-17,914.86-3,178.19

Finding the Fourth Proportional to 11,943.24, 17,914.86 and 3,178.19

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Solution

The fourth proportional to 11,943.24, 17,914.86 and 3,178.19 is: 4,767.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,943.24 : 17,914.86 = 3,178.19 : x
  2. Step 2: Convert to fraction form
    11,943.24/17,914.86 = 3,178.19/x
  3. Step 3: Cross multiply
    11,943.24x = 17,914.86 × 3,178.19
  4. Step 4: Simplify right side
    11,943.24x = 56,936,739.33
  5. Step 5: Solve for x
    x = 56,936,739.33/11,943.24
  6. Step 6: Final answer
    x = 4,767.28

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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.