Home / 7,972.80-11,961.92-4,073.92

Finding the Fourth Proportional to 7,972.80, 11,961.92 and 4,073.92

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Solution

The fourth proportional to 7,972.80, 11,961.92 and 4,073.92 is: 6,112.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,972.80 : 11,961.92 = 4,073.92 : x
  2. Step 2: Convert to fraction form
    7,972.80/11,961.92 = 4,073.92/x
  3. Step 3: Cross multiply
    7,972.80x = 11,961.92 × 4,073.92
  4. Step 4: Simplify right side
    7,972.80x = 48,731,905.13
  5. Step 5: Solve for x
    x = 48,731,905.13/7,972.80
  6. Step 6: Final answer
    x = 6,112.27

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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.