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Finding the Fourth Proportional to 8,622.89, 12,934.07 and 2,383.28

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Solution

The fourth proportional to 8,622.89, 12,934.07 and 2,383.28 is: 3,574.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,622.89 : 12,934.07 = 2,383.28 : x
  2. Step 2: Convert to fraction form
    8,622.89/12,934.07 = 2,383.28/x
  3. Step 3: Cross multiply
    8,622.89x = 12,934.07 × 2,383.28
  4. Step 4: Simplify right side
    8,622.89x = 30,825,510.35
  5. Step 5: Solve for x
    x = 30,825,510.35/8,622.89
  6. Step 6: Final answer
    x = 3,574.85

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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.