Home / 8,157.28-11,261.82-5,917

Finding the Fourth Proportional to 8,157.28, 11,261.82 and 5,917

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Solution

The fourth proportional to 8,157.28, 11,261.82 and 5,917 is: 8,168.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,157.28 : 11,261.82 = 5,917 : x
  2. Step 2: Convert to fraction form
    8,157.28/11,261.82 = 5,917/x
  3. Step 3: Cross multiply
    8,157.28x = 11,261.82 × 5,917
  4. Step 4: Simplify right side
    8,157.28x = 66,636,188.94
  5. Step 5: Solve for x
    x = 66,636,188.94/8,157.28
  6. Step 6: Final answer
    x = 8,168.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.