Home / 18,255.56-27,381.20-5,108.94

Finding the Fourth Proportional to 18,255.56, 27,381.20 and 5,108.94

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Solution

The fourth proportional to 18,255.56, 27,381.20 and 5,108.94 is: 7,662.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,255.56 : 27,381.20 = 5,108.94 : x
  2. Step 2: Convert to fraction form
    18,255.56/27,381.20 = 5,108.94/x
  3. Step 3: Cross multiply
    18,255.56x = 27,381.20 × 5,108.94
  4. Step 4: Simplify right side
    18,255.56x = 139,888,907.93
  5. Step 5: Solve for x
    x = 139,888,907.93/18,255.56
  6. Step 6: Final answer
    x = 7,662.81

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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.