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Finding the Fourth Proportional to 8,908.57, 13,363.22 and 3,977.29

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Solution

The fourth proportional to 8,908.57, 13,363.22 and 3,977.29 is: 5,966.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,908.57 : 13,363.22 = 3,977.29 : x
  2. Step 2: Convert to fraction form
    8,908.57/13,363.22 = 3,977.29/x
  3. Step 3: Cross multiply
    8,908.57x = 13,363.22 × 3,977.29
  4. Step 4: Simplify right side
    8,908.57x = 53,149,381.39
  5. Step 5: Solve for x
    x = 53,149,381.39/8,908.57
  6. Step 6: Final answer
    x = 5,966.10

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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.