Home / 8,622.14-12,933.28-3,428.04

Finding the Fourth Proportional to 8,622.14, 12,933.28 and 3,428.04

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Solution

The fourth proportional to 8,622.14, 12,933.28 and 3,428.04 is: 5,142.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,622.14 : 12,933.28 = 3,428.04 : x
  2. Step 2: Convert to fraction form
    8,622.14/12,933.28 = 3,428.04/x
  3. Step 3: Cross multiply
    8,622.14x = 12,933.28 × 3,428.04
  4. Step 4: Simplify right side
    8,622.14x = 44,335,801.17
  5. Step 5: Solve for x
    x = 44,335,801.17/8,622.14
  6. Step 6: Final answer
    x = 5,142.09

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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.