Home / 12,791.36-19,163.66-9,272.64

Finding the Fourth Proportional to 12,791.36, 19,163.66 and 9,272.64

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Solution

The fourth proportional to 12,791.36, 19,163.66 and 9,272.64 is: 13,892.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,791.36 : 19,163.66 = 9,272.64 : x
  2. Step 2: Convert to fraction form
    12,791.36/19,163.66 = 9,272.64/x
  3. Step 3: Cross multiply
    12,791.36x = 19,163.66 × 9,272.64
  4. Step 4: Simplify right side
    12,791.36x = 177,697,584.07
  5. Step 5: Solve for x
    x = 177,697,584.07/12,791.36
  6. Step 6: Final answer
    x = 13,892.01

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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.