Home / 17,116.40-25,664.84-8,789.60

Finding the Fourth Proportional to 17,116.40, 25,664.84 and 8,789.60

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Solution

The fourth proportional to 17,116.40, 25,664.84 and 8,789.60 is: 13,179.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,116.40 : 25,664.84 = 8,789.60 : x
  2. Step 2: Convert to fraction form
    17,116.40/25,664.84 = 8,789.60/x
  3. Step 3: Cross multiply
    17,116.40x = 25,664.84 × 8,789.60
  4. Step 4: Simplify right side
    17,116.40x = 225,583,677.66
  5. Step 5: Solve for x
    x = 225,583,677.66/17,116.40
  6. Step 6: Final answer
    x = 13,179.39

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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.