Home / 18,295.09-27,447.80-5,147.57

Finding the Fourth Proportional to 18,295.09, 27,447.80 and 5,147.57

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Solution

The fourth proportional to 18,295.09, 27,447.80 and 5,147.57 is: 7,722.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,295.09 : 27,447.80 = 5,147.57 : x
  2. Step 2: Convert to fraction form
    18,295.09/27,447.80 = 5,147.57/x
  3. Step 3: Cross multiply
    18,295.09x = 27,447.80 × 5,147.57
  4. Step 4: Simplify right side
    18,295.09x = 141,289,514.73
  5. Step 5: Solve for x
    x = 141,289,514.73/18,295.09
  6. Step 6: Final answer
    x = 7,722.81

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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.