Home / 18,785.80-28,176.27-7,097.50

Finding the Fourth Proportional to 18,785.80, 28,176.27 and 7,097.50

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Solution

The fourth proportional to 18,785.80, 28,176.27 and 7,097.50 is: 10,645.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,785.80 : 28,176.27 = 7,097.50 : x
  2. Step 2: Convert to fraction form
    18,785.80/28,176.27 = 7,097.50/x
  3. Step 3: Cross multiply
    18,785.80x = 28,176.27 × 7,097.50
  4. Step 4: Simplify right side
    18,785.80x = 199,981,076.33
  5. Step 5: Solve for x
    x = 199,981,076.33/18,785.80
  6. Step 6: Final answer
    x = 10,645.33

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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.