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Finding the Fourth Proportional to 8,606.79, 12,906.27 and 3,060.05

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Solution

The fourth proportional to 8,606.79, 12,906.27 and 3,060.05 is: 4,588.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,606.79 : 12,906.27 = 3,060.05 : x
  2. Step 2: Convert to fraction form
    8,606.79/12,906.27 = 3,060.05/x
  3. Step 3: Cross multiply
    8,606.79x = 12,906.27 × 3,060.05
  4. Step 4: Simplify right side
    8,606.79x = 39,493,766.98
  5. Step 5: Solve for x
    x = 39,493,766.98/8,606.79
  6. Step 6: Final answer
    x = 4,588.68

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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.