Home / 13,881.24-19,122.89-11,481.21

Finding the Fourth Proportional to 13,881.24, 19,122.89 and 11,481.21

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Solution

The fourth proportional to 13,881.24, 19,122.89 and 11,481.21 is: 15,816.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,881.24 : 19,122.89 = 11,481.21 : x
  2. Step 2: Convert to fraction form
    13,881.24/19,122.89 = 11,481.21/x
  3. Step 3: Cross multiply
    13,881.24x = 19,122.89 × 11,481.21
  4. Step 4: Simplify right side
    13,881.24x = 219,553,858.49
  5. Step 5: Solve for x
    x = 219,553,858.49/13,881.24
  6. Step 6: Final answer
    x = 15,816.59

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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.