Home / 11,910.56-17,864.24-3,145.44

Finding the Fourth Proportional to 11,910.56, 17,864.24 and 3,145.44

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Solution

The fourth proportional to 11,910.56, 17,864.24 and 3,145.44 is: 4,717.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,910.56 : 17,864.24 = 3,145.44 : x
  2. Step 2: Convert to fraction form
    11,910.56/17,864.24 = 3,145.44/x
  3. Step 3: Cross multiply
    11,910.56x = 17,864.24 × 3,145.44
  4. Step 4: Simplify right side
    11,910.56x = 56,190,895.07
  5. Step 5: Solve for x
    x = 56,190,895.07/11,910.56
  6. Step 6: Final answer
    x = 4,717.74

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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.