Home / 13,886.05-19,163.26-7,917.66

Finding the Fourth Proportional to 13,886.05, 19,163.26 and 7,917.66

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Solution

The fourth proportional to 13,886.05, 19,163.26 and 7,917.66 is: 10,926.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,886.05 : 19,163.26 = 7,917.66 : x
  2. Step 2: Convert to fraction form
    13,886.05/19,163.26 = 7,917.66/x
  3. Step 3: Cross multiply
    13,886.05x = 19,163.26 × 7,917.66
  4. Step 4: Simplify right side
    13,886.05x = 151,728,177.17
  5. Step 5: Solve for x
    x = 151,728,177.17/13,886.05
  6. Step 6: Final answer
    x = 10,926.66

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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.