Home / 18,188.76-27,255.27-12,243.66

Finding the Fourth Proportional to 18,188.76, 27,255.27 and 12,243.66

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Solution

The fourth proportional to 18,188.76, 27,255.27 and 12,243.66 is: 18,346.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,188.76 : 27,255.27 = 12,243.66 : x
  2. Step 2: Convert to fraction form
    18,188.76/27,255.27 = 12,243.66/x
  3. Step 3: Cross multiply
    18,188.76x = 27,255.27 × 12,243.66
  4. Step 4: Simplify right side
    18,188.76x = 333,704,259.09
  5. Step 5: Solve for x
    x = 333,704,259.09/18,188.76
  6. Step 6: Final answer
    x = 18,346.73

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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.