Home / 12,649.44-18,975.78-3,882.81

Finding the Fourth Proportional to 12,649.44, 18,975.78 and 3,882.81

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Solution

The fourth proportional to 12,649.44, 18,975.78 and 3,882.81 is: 5,824.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,649.44 : 18,975.78 = 3,882.81 : x
  2. Step 2: Convert to fraction form
    12,649.44/18,975.78 = 3,882.81/x
  3. Step 3: Cross multiply
    12,649.44x = 18,975.78 × 3,882.81
  4. Step 4: Simplify right side
    12,649.44x = 73,679,348.34
  5. Step 5: Solve for x
    x = 73,679,348.34/12,649.44
  6. Step 6: Final answer
    x = 5,824.71

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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.