Home / 13,057.25-19,542.56-11,889.95

Finding the Fourth Proportional to 13,057.25, 19,542.56 and 11,889.95

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Solution

The fourth proportional to 13,057.25, 19,542.56 and 11,889.95 is: 17,795.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,057.25 : 19,542.56 = 11,889.95 : x
  2. Step 2: Convert to fraction form
    13,057.25/19,542.56 = 11,889.95/x
  3. Step 3: Cross multiply
    13,057.25x = 19,542.56 × 11,889.95
  4. Step 4: Simplify right side
    13,057.25x = 232,359,904.11
  5. Step 5: Solve for x
    x = 232,359,904.11/13,057.25
  6. Step 6: Final answer
    x = 17,795.48

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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.