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Finding the Fourth Proportional to 8,157.29, 11,256.62 and 4,620.43

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Solution

The fourth proportional to 8,157.29, 11,256.62 and 4,620.43 is: 6,375.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,157.29 : 11,256.62 = 4,620.43 : x
  2. Step 2: Convert to fraction form
    8,157.29/11,256.62 = 4,620.43/x
  3. Step 3: Cross multiply
    8,157.29x = 11,256.62 × 4,620.43
  4. Step 4: Simplify right side
    8,157.29x = 52,010,408.16
  5. Step 5: Solve for x
    x = 52,010,408.16/8,157.29
  6. Step 6: Final answer
    x = 6,375.94

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