Home / 11,961.05-17,929.85-4,459.11

Finding the Fourth Proportional to 11,961.05, 17,929.85 and 4,459.11

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Solution

The fourth proportional to 11,961.05, 17,929.85 and 4,459.11 is: 6,684.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,961.05 : 17,929.85 = 4,459.11 : x
  2. Step 2: Convert to fraction form
    11,961.05/17,929.85 = 4,459.11/x
  3. Step 3: Cross multiply
    11,961.05x = 17,929.85 × 4,459.11
  4. Step 4: Simplify right side
    11,961.05x = 79,951,184.58
  5. Step 5: Solve for x
    x = 79,951,184.58/11,961.05
  6. Step 6: Final answer
    x = 6,684.30

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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.