Home / 7,933.38-11,891.70-2,663.40

Finding the Fourth Proportional to 7,933.38, 11,891.70 and 2,663.40

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Solution

The fourth proportional to 7,933.38, 11,891.70 and 2,663.40 is: 3,992.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,933.38 : 11,891.70 = 2,663.40 : x
  2. Step 2: Convert to fraction form
    7,933.38/11,891.70 = 2,663.40/x
  3. Step 3: Cross multiply
    7,933.38x = 11,891.70 × 2,663.40
  4. Step 4: Simplify right side
    7,933.38x = 31,672,353.78
  5. Step 5: Solve for x
    x = 31,672,353.78/7,933.38
  6. Step 6: Final answer
    x = 3,992.29

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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.