Home / 13,850.22-19,112.62-7,881.33

Finding the Fourth Proportional to 13,850.22, 19,112.62 and 7,881.33

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Solution

The fourth proportional to 13,850.22, 19,112.62 and 7,881.33 is: 10,875.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,850.22 : 19,112.62 = 7,881.33 : x
  2. Step 2: Convert to fraction form
    13,850.22/19,112.62 = 7,881.33/x
  3. Step 3: Cross multiply
    13,850.22x = 19,112.62 × 7,881.33
  4. Step 4: Simplify right side
    13,850.22x = 150,632,865.38
  5. Step 5: Solve for x
    x = 150,632,865.38/13,850.22
  6. Step 6: Final answer
    x = 10,875.85

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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.