Home / 18,511.76-25,546.92-10,553.78

Finding the Fourth Proportional to 18,511.76, 25,546.92 and 10,553.78

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Solution

The fourth proportional to 18,511.76, 25,546.92 and 10,553.78 is: 14,564.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,511.76 : 25,546.92 = 10,553.78 : x
  2. Step 2: Convert to fraction form
    18,511.76/25,546.92 = 10,553.78/x
  3. Step 3: Cross multiply
    18,511.76x = 25,546.92 × 10,553.78
  4. Step 4: Simplify right side
    18,511.76x = 269,616,573.36
  5. Step 5: Solve for x
    x = 269,616,573.36/18,511.76
  6. Step 6: Final answer
    x = 14,564.61

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1.5x scale

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.