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Finding the Fourth Proportional to 8,676.77, 13,003.80 and 3,486.29

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Solution

The fourth proportional to 8,676.77, 13,003.80 and 3,486.29 is: 5,224.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,676.77 : 13,003.80 = 3,486.29 : x
  2. Step 2: Convert to fraction form
    8,676.77/13,003.80 = 3,486.29/x
  3. Step 3: Cross multiply
    8,676.77x = 13,003.80 × 3,486.29
  4. Step 4: Simplify right side
    8,676.77x = 45,334,952.88
  5. Step 5: Solve for x
    x = 45,334,952.88/8,676.77
  6. Step 6: Final answer
    x = 5,224.87

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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.