Home / 18,723.06-28,093.27-8,191.69

Finding the Fourth Proportional to 18,723.06, 28,093.27 and 8,191.69

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Solution

The fourth proportional to 18,723.06, 28,093.27 and 8,191.69 is: 12,291.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,723.06 : 28,093.27 = 8,191.69 : x
  2. Step 2: Convert to fraction form
    18,723.06/28,093.27 = 8,191.69/x
  3. Step 3: Cross multiply
    18,723.06x = 28,093.27 × 8,191.69
  4. Step 4: Simplify right side
    18,723.06x = 230,131,351.07
  5. Step 5: Solve for x
    x = 230,131,351.07/18,723.06
  6. Step 6: Final answer
    x = 12,291.34

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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.