Home / 13,329.74-19,971.12-11,881.82

Finding the Fourth Proportional to 13,329.74, 19,971.12 and 11,881.82

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Solution

The fourth proportional to 13,329.74, 19,971.12 and 11,881.82 is: 17,801.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,329.74 : 19,971.12 = 11,881.82 : x
  2. Step 2: Convert to fraction form
    13,329.74/19,971.12 = 11,881.82/x
  3. Step 3: Cross multiply
    13,329.74x = 19,971.12 × 11,881.82
  4. Step 4: Simplify right side
    13,329.74x = 237,293,253.04
  5. Step 5: Solve for x
    x = 237,293,253.04/13,329.74
  6. Step 6: Final answer
    x = 17,801.79

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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.