Home / 11,836.78-17,733.30-5,979.40

Finding the Fourth Proportional to 11,836.78, 17,733.30 and 5,979.40

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Solution

The fourth proportional to 11,836.78, 17,733.30 and 5,979.40 is: 8,958.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,836.78 : 17,733.30 = 5,979.40 : x
  2. Step 2: Convert to fraction form
    11,836.78/17,733.30 = 5,979.40/x
  3. Step 3: Cross multiply
    11,836.78x = 17,733.30 × 5,979.40
  4. Step 4: Simplify right side
    11,836.78x = 106,034,494.02
  5. Step 5: Solve for x
    x = 106,034,494.02/11,836.78
  6. Step 6: Final answer
    x = 8,958.05

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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.