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Finding the Fourth Proportional to 8,908.68, 13,370.46 and 3,069.39

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Solution

The fourth proportional to 8,908.68, 13,370.46 and 3,069.39 is: 4,606.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,908.68 : 13,370.46 = 3,069.39 : x
  2. Step 2: Convert to fraction form
    8,908.68/13,370.46 = 3,069.39/x
  3. Step 3: Cross multiply
    8,908.68x = 13,370.46 × 3,069.39
  4. Step 4: Simplify right side
    8,908.68x = 41,039,156.22
  5. Step 5: Solve for x
    x = 41,039,156.22/8,908.68
  6. Step 6: Final answer
    x = 4,606.65

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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.