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Finding the Fourth Proportional to 15,043.47, 20,759.85 and 8,329.29

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Solution

The fourth proportional to 15,043.47, 20,759.85 and 8,329.29 is: 11,494.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,043.47 : 20,759.85 = 8,329.29 : x
  2. Step 2: Convert to fraction form
    15,043.47/20,759.85 = 8,329.29/x
  3. Step 3: Cross multiply
    15,043.47x = 20,759.85 × 8,329.29
  4. Step 4: Simplify right side
    15,043.47x = 172,914,811.01
  5. Step 5: Solve for x
    x = 172,914,811.01/15,043.47
  6. Step 6: Final answer
    x = 11,494.34

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.