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Finding the Fourth Proportional to 8,586.66, 12,881.84 and 2,663.43

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Solution

The fourth proportional to 8,586.66, 12,881.84 and 2,663.43 is: 3,995.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,586.66 : 12,881.84 = 2,663.43 : x
  2. Step 2: Convert to fraction form
    8,586.66/12,881.84 = 2,663.43/x
  3. Step 3: Cross multiply
    8,586.66x = 12,881.84 × 2,663.43
  4. Step 4: Simplify right side
    8,586.66x = 34,309,811.24
  5. Step 5: Solve for x
    x = 34,309,811.24/8,586.66
  6. Step 6: Final answer
    x = 3,995.71

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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.