Home / 19,863.36-29,786.94-8,619.48

Finding the Fourth Proportional to 19,863.36, 29,786.94 and 8,619.48

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Solution

The fourth proportional to 19,863.36, 29,786.94 and 8,619.48 is: 12,925.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,863.36 : 29,786.94 = 8,619.48 : x
  2. Step 2: Convert to fraction form
    19,863.36/29,786.94 = 8,619.48/x
  3. Step 3: Cross multiply
    19,863.36x = 29,786.94 × 8,619.48
  4. Step 4: Simplify right side
    19,863.36x = 256,747,933.59
  5. Step 5: Solve for x
    x = 256,747,933.59/19,863.36
  6. Step 6: Final answer
    x = 12,925.71

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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.