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Finding the Fourth Proportional to 8,604.56, 12,909 and 4,224.08

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Solution

The fourth proportional to 8,604.56, 12,909 and 4,224.08 is: 6,337.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,604.56 : 12,909 = 4,224.08 : x
  2. Step 2: Convert to fraction form
    8,604.56/12,909 = 4,224.08/x
  3. Step 3: Cross multiply
    8,604.56x = 12,909 × 4,224.08
  4. Step 4: Simplify right side
    8,604.56x = 54,528,648.72
  5. Step 5: Solve for x
    x = 54,528,648.72/8,604.56
  6. Step 6: Final answer
    x = 6,337.18

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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.