Home / 18,747.28-25,876.38-11,669.50

Finding the Fourth Proportional to 18,747.28, 25,876.38 and 11,669.50

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Solution

The fourth proportional to 18,747.28, 25,876.38 and 11,669.50 is: 16,107.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,747.28 : 25,876.38 = 11,669.50 : x
  2. Step 2: Convert to fraction form
    18,747.28/25,876.38 = 11,669.50/x
  3. Step 3: Cross multiply
    18,747.28x = 25,876.38 × 11,669.50
  4. Step 4: Simplify right side
    18,747.28x = 301,964,416.41
  5. Step 5: Solve for x
    x = 301,964,416.41/18,747.28
  6. Step 6: Final answer
    x = 16,107.11

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Why These Related Problems?

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