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Finding the Fourth Proportional to 12,708.53, 19,053.96 and 5,589.33

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Solution

The fourth proportional to 12,708.53, 19,053.96 and 5,589.33 is: 8,380.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,708.53 : 19,053.96 = 5,589.33 : x
  2. Step 2: Convert to fraction form
    12,708.53/19,053.96 = 5,589.33/x
  3. Step 3: Cross multiply
    12,708.53x = 19,053.96 × 5,589.33
  4. Step 4: Simplify right side
    12,708.53x = 106,498,870.25
  5. Step 5: Solve for x
    x = 106,498,870.25/12,708.53
  6. Step 6: Final answer
    x = 8,380.11

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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.