Home / 11,487.60-17,231.76-4,091.94

Finding the Fourth Proportional to 11,487.60, 17,231.76 and 4,091.94

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Solution

The fourth proportional to 11,487.60, 17,231.76 and 4,091.94 is: 6,138.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,487.60 : 17,231.76 = 4,091.94 : x
  2. Step 2: Convert to fraction form
    11,487.60/17,231.76 = 4,091.94/x
  3. Step 3: Cross multiply
    11,487.60x = 17,231.76 × 4,091.94
  4. Step 4: Simplify right side
    11,487.60x = 70,511,328.01
  5. Step 5: Solve for x
    x = 70,511,328.01/11,487.60
  6. Step 6: Final answer
    x = 6,138.04

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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.