Home / 18,727.26-28,072.45-7,641.73

Finding the Fourth Proportional to 18,727.26, 28,072.45 and 7,641.73

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Solution

The fourth proportional to 18,727.26, 28,072.45 and 7,641.73 is: 11,455.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,727.26 : 28,072.45 = 7,641.73 : x
  2. Step 2: Convert to fraction form
    18,727.26/28,072.45 = 7,641.73/x
  3. Step 3: Cross multiply
    18,727.26x = 28,072.45 × 7,641.73
  4. Step 4: Simplify right side
    18,727.26x = 214,522,083.34
  5. Step 5: Solve for x
    x = 214,522,083.34/18,727.26
  6. Step 6: Final answer
    x = 11,455.07

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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.