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Finding the Fourth Proportional to 8,351.01, 12,521.01 and 3,419.31

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Solution

The fourth proportional to 8,351.01, 12,521.01 and 3,419.31 is: 5,126.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,351.01 : 12,521.01 = 3,419.31 : x
  2. Step 2: Convert to fraction form
    8,351.01/12,521.01 = 3,419.31/x
  3. Step 3: Cross multiply
    8,351.01x = 12,521.01 × 3,419.31
  4. Step 4: Simplify right side
    8,351.01x = 42,813,214.70
  5. Step 5: Solve for x
    x = 42,813,214.70/8,351.01
  6. Step 6: Final answer
    x = 5,126.71

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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.