Home / 7,999.49-11,997.86-2,154.73

Finding the Fourth Proportional to 7,999.49, 11,997.86 and 2,154.73

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Solution

The fourth proportional to 7,999.49, 11,997.86 and 2,154.73 is: 3,231.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,999.49 : 11,997.86 = 2,154.73 : x
  2. Step 2: Convert to fraction form
    7,999.49/11,997.86 = 2,154.73/x
  3. Step 3: Cross multiply
    7,999.49x = 11,997.86 × 2,154.73
  4. Step 4: Simplify right side
    7,999.49x = 25,852,166.48
  5. Step 5: Solve for x
    x = 25,852,166.48/7,999.49
  6. Step 6: Final answer
    x = 3,231.73

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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.