Home / 11,157.40-16,743.42-4,231.96

Finding the Fourth Proportional to 11,157.40, 16,743.42 and 4,231.96

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Solution

The fourth proportional to 11,157.40, 16,743.42 and 4,231.96 is: 6,350.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,157.40 : 16,743.42 = 4,231.96 : x
  2. Step 2: Convert to fraction form
    11,157.40/16,743.42 = 4,231.96/x
  3. Step 3: Cross multiply
    11,157.40x = 16,743.42 × 4,231.96
  4. Step 4: Simplify right side
    11,157.40x = 70,857,483.70
  5. Step 5: Solve for x
    x = 70,857,483.70/11,157.40
  6. Step 6: Final answer
    x = 6,350.72

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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.