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Finding the Fourth Proportional to 8,606.72, 12,902.19 and 3,345.27

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Solution

The fourth proportional to 8,606.72, 12,902.19 and 3,345.27 is: 5,014.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,606.72 : 12,902.19 = 3,345.27 : x
  2. Step 2: Convert to fraction form
    8,606.72/12,902.19 = 3,345.27/x
  3. Step 3: Cross multiply
    8,606.72x = 12,902.19 × 3,345.27
  4. Step 4: Simplify right side
    8,606.72x = 43,161,248.21
  5. Step 5: Solve for x
    x = 43,161,248.21/8,606.72
  6. Step 6: Final answer
    x = 5,014.83

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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.