Home / 11,979.60-17,958.33-6,123.30

Finding the Fourth Proportional to 11,979.60, 17,958.33 and 6,123.30

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Solution

The fourth proportional to 11,979.60, 17,958.33 and 6,123.30 is: 9,179.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,979.60 : 17,958.33 = 6,123.30 : x
  2. Step 2: Convert to fraction form
    11,979.60/17,958.33 = 6,123.30/x
  3. Step 3: Cross multiply
    11,979.60x = 17,958.33 × 6,123.30
  4. Step 4: Simplify right side
    11,979.60x = 109,964,242.09
  5. Step 5: Solve for x
    x = 109,964,242.09/11,979.60
  6. Step 6: Final answer
    x = 9,179.29

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1.5x scale

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.