Home / 10,912.59-16,373.75-5,717.25

Finding the Fourth Proportional to 10,912.59, 16,373.75 and 5,717.25

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Solution

The fourth proportional to 10,912.59, 16,373.75 and 5,717.25 is: 8,578.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,912.59 : 16,373.75 = 5,717.25 : x
  2. Step 2: Convert to fraction form
    10,912.59/16,373.75 = 5,717.25/x
  3. Step 3: Cross multiply
    10,912.59x = 16,373.75 × 5,717.25
  4. Step 4: Simplify right side
    10,912.59x = 93,612,793.60
  5. Step 5: Solve for x
    x = 93,612,793.60/10,912.59
  6. Step 6: Final answer
    x = 8,578.42

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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.