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Finding the Fourth Proportional to 8,676.66, 13,014.96 and 2,102.88

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Solution

The fourth proportional to 8,676.66, 13,014.96 and 2,102.88 is: 3,154.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,676.66 : 13,014.96 = 2,102.88 : x
  2. Step 2: Convert to fraction form
    8,676.66/13,014.96 = 2,102.88/x
  3. Step 3: Cross multiply
    8,676.66x = 13,014.96 × 2,102.88
  4. Step 4: Simplify right side
    8,676.66x = 27,368,899.08
  5. Step 5: Solve for x
    x = 27,368,899.08/8,676.66
  6. Step 6: Final answer
    x = 3,154.31

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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.