Home / 7,998.94-11,997.55-2,156.14

Finding the Fourth Proportional to 7,998.94, 11,997.55 and 2,156.14

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Solution

The fourth proportional to 7,998.94, 11,997.55 and 2,156.14 is: 3,233.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,998.94 : 11,997.55 = 2,156.14 : x
  2. Step 2: Convert to fraction form
    7,998.94/11,997.55 = 2,156.14/x
  3. Step 3: Cross multiply
    7,998.94x = 11,997.55 × 2,156.14
  4. Step 4: Simplify right side
    7,998.94x = 25,868,397.46
  5. Step 5: Solve for x
    x = 25,868,397.46/7,998.94
  6. Step 6: Final answer
    x = 3,233.98

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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.