Home / 19,163.97-28,708.56-10,818.72

Finding the Fourth Proportional to 19,163.97, 28,708.56 and 10,818.72

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Solution

The fourth proportional to 19,163.97, 28,708.56 and 10,818.72 is: 16,206.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,163.97 : 28,708.56 = 10,818.72 : x
  2. Step 2: Convert to fraction form
    19,163.97/28,708.56 = 10,818.72/x
  3. Step 3: Cross multiply
    19,163.97x = 28,708.56 × 10,818.72
  4. Step 4: Simplify right side
    19,163.97x = 310,589,872.24
  5. Step 5: Solve for x
    x = 310,589,872.24/19,163.97
  6. Step 6: Final answer
    x = 16,206.97

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1.5x scale

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.