Home / 16,912.80-25,363.60-5,817.60

Finding the Fourth Proportional to 16,912.80, 25,363.60 and 5,817.60

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Solution

The fourth proportional to 16,912.80, 25,363.60 and 5,817.60 is: 8,724.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,912.80 : 25,363.60 = 5,817.60 : x
  2. Step 2: Convert to fraction form
    16,912.80/25,363.60 = 5,817.60/x
  3. Step 3: Cross multiply
    16,912.80x = 25,363.60 × 5,817.60
  4. Step 4: Simplify right side
    16,912.80x = 147,555,279.36
  5. Step 5: Solve for x
    x = 147,555,279.36/16,912.80
  6. Step 6: Final answer
    x = 8,724.47

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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.