Home / 13,936.22-19,229.50-7,886.43

Finding the Fourth Proportional to 13,936.22, 19,229.50 and 7,886.43

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Solution

The fourth proportional to 13,936.22, 19,229.50 and 7,886.43 is: 10,881.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,936.22 : 19,229.50 = 7,886.43 : x
  2. Step 2: Convert to fraction form
    13,936.22/19,229.50 = 7,886.43/x
  3. Step 3: Cross multiply
    13,936.22x = 19,229.50 × 7,886.43
  4. Step 4: Simplify right side
    13,936.22x = 151,652,115.54
  5. Step 5: Solve for x
    x = 151,652,115.54/13,936.22
  6. Step 6: Final answer
    x = 10,881.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.