Home / 18,942.33-28,417.59-7,255.56

Finding the Fourth Proportional to 18,942.33, 28,417.59 and 7,255.56

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Solution

The fourth proportional to 18,942.33, 28,417.59 and 7,255.56 is: 10,884.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,942.33 : 28,417.59 = 7,255.56 : x
  2. Step 2: Convert to fraction form
    18,942.33/28,417.59 = 7,255.56/x
  3. Step 3: Cross multiply
    18,942.33x = 28,417.59 × 7,255.56
  4. Step 4: Simplify right side
    18,942.33x = 206,185,529.30
  5. Step 5: Solve for x
    x = 206,185,529.30/18,942.33
  6. Step 6: Final answer
    x = 10,884.91

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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.