Home / 18,185.42-27,278.11-5,706.54

Finding the Fourth Proportional to 18,185.42, 27,278.11 and 5,706.54

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Solution

The fourth proportional to 18,185.42, 27,278.11 and 5,706.54 is: 8,559.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,185.42 : 27,278.11 = 5,706.54 : x
  2. Step 2: Convert to fraction form
    18,185.42/27,278.11 = 5,706.54/x
  3. Step 3: Cross multiply
    18,185.42x = 27,278.11 × 5,706.54
  4. Step 4: Simplify right side
    18,185.42x = 155,663,625.84
  5. Step 5: Solve for x
    x = 155,663,625.84/18,185.42
  6. Step 6: Final answer
    x = 8,559.80

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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.