Home / 13,974.31-20,961.51-8,769.25

Finding the Fourth Proportional to 13,974.31, 20,961.51 and 8,769.25

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Solution

The fourth proportional to 13,974.31, 20,961.51 and 8,769.25 is: 13,153.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,974.31 : 20,961.51 = 8,769.25 : x
  2. Step 2: Convert to fraction form
    13,974.31/20,961.51 = 8,769.25/x
  3. Step 3: Cross multiply
    13,974.31x = 20,961.51 × 8,769.25
  4. Step 4: Simplify right side
    13,974.31x = 183,816,721.57
  5. Step 5: Solve for x
    x = 183,816,721.57/13,974.31
  6. Step 6: Final answer
    x = 13,153.90

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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.