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Finding the Fourth Proportional to 8,717.58, 13,077 and 2,874.78

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Solution

The fourth proportional to 8,717.58, 13,077 and 2,874.78 is: 4,312.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,717.58 : 13,077 = 2,874.78 : x
  2. Step 2: Convert to fraction form
    8,717.58/13,077 = 2,874.78/x
  3. Step 3: Cross multiply
    8,717.58x = 13,077 × 2,874.78
  4. Step 4: Simplify right side
    8,717.58x = 37,593,498.06
  5. Step 5: Solve for x
    x = 37,593,498.06/8,717.58
  6. Step 6: Final answer
    x = 4,312.38

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.