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Finding the Fourth Proportional to 7,997.46, 11,995.92 and 2,153.76

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Solution

The fourth proportional to 7,997.46, 11,995.92 and 2,153.76 is: 3,230.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,997.46 : 11,995.92 = 2,153.76 : x
  2. Step 2: Convert to fraction form
    7,997.46/11,995.92 = 2,153.76/x
  3. Step 3: Cross multiply
    7,997.46x = 11,995.92 × 2,153.76
  4. Step 4: Simplify right side
    7,997.46x = 25,836,332.66
  5. Step 5: Solve for x
    x = 25,836,332.66/7,997.46
  6. Step 6: Final answer
    x = 3,230.57

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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.