Home / 11,856.23-17,770.84-3,956.89

Finding the Fourth Proportional to 11,856.23, 17,770.84 and 3,956.89

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Solution

The fourth proportional to 11,856.23, 17,770.84 and 3,956.89 is: 5,930.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,856.23 : 17,770.84 = 3,956.89 : x
  2. Step 2: Convert to fraction form
    11,856.23/17,770.84 = 3,956.89/x
  3. Step 3: Cross multiply
    11,856.23x = 17,770.84 × 3,956.89
  4. Step 4: Simplify right side
    11,856.23x = 70,317,259.09
  5. Step 5: Solve for x
    x = 70,317,259.09/11,856.23
  6. Step 6: Final answer
    x = 5,930.83

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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.