Home / 7,923.88-11,877.57-2,654.92

Finding the Fourth Proportional to 7,923.88, 11,877.57 and 2,654.92

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Solution

The fourth proportional to 7,923.88, 11,877.57 and 2,654.92 is: 3,979.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,923.88 : 11,877.57 = 2,654.92 : x
  2. Step 2: Convert to fraction form
    7,923.88/11,877.57 = 2,654.92/x
  3. Step 3: Cross multiply
    7,923.88x = 11,877.57 × 2,654.92
  4. Step 4: Simplify right side
    7,923.88x = 31,533,998.14
  5. Step 5: Solve for x
    x = 31,533,998.14/7,923.88
  6. Step 6: Final answer
    x = 3,979.62

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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.