Home / 18,812.64-28,194.20-10,496.57

Finding the Fourth Proportional to 18,812.64, 28,194.20 and 10,496.57

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Solution

The fourth proportional to 18,812.64, 28,194.20 and 10,496.57 is: 15,731.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,812.64 : 28,194.20 = 10,496.57 : x
  2. Step 2: Convert to fraction form
    18,812.64/28,194.20 = 10,496.57/x
  3. Step 3: Cross multiply
    18,812.64x = 28,194.20 × 10,496.57
  4. Step 4: Simplify right side
    18,812.64x = 295,942,200.44
  5. Step 5: Solve for x
    x = 295,942,200.44/18,812.64
  6. Step 6: Final answer
    x = 15,731.03

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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.