Home / 11,997.28-17,997.10-3,677.20

Finding the Fourth Proportional to 11,997.28, 17,997.10 and 3,677.20

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Solution

The fourth proportional to 11,997.28, 17,997.10 and 3,677.20 is: 5,516.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,997.28 : 17,997.10 = 3,677.20 : x
  2. Step 2: Convert to fraction form
    11,997.28/17,997.10 = 3,677.20/x
  3. Step 3: Cross multiply
    11,997.28x = 17,997.10 × 3,677.20
  4. Step 4: Simplify right side
    11,997.28x = 66,178,936.12
  5. Step 5: Solve for x
    x = 66,178,936.12/11,997.28
  6. Step 6: Final answer
    x = 5,516.16

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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.