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Finding the Fourth Proportional to 8,622.77, 12,935.06 and 3,691.08

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Solution

The fourth proportional to 8,622.77, 12,935.06 and 3,691.08 is: 5,537.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,622.77 : 12,935.06 = 3,691.08 : x
  2. Step 2: Convert to fraction form
    8,622.77/12,935.06 = 3,691.08/x
  3. Step 3: Cross multiply
    8,622.77x = 12,935.06 × 3,691.08
  4. Step 4: Simplify right side
    8,622.77x = 47,744,336.65
  5. Step 5: Solve for x
    x = 47,744,336.65/8,622.77
  6. Step 6: Final answer
    x = 5,537.01

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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.