Home / 19,668.12-27,138.96-11,283

Finding the Fourth Proportional to 19,668.12, 27,138.96 and 11,283

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Solution

The fourth proportional to 19,668.12, 27,138.96 and 11,283 is: 15,568.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,668.12 : 27,138.96 = 11,283 : x
  2. Step 2: Convert to fraction form
    19,668.12/27,138.96 = 11,283/x
  3. Step 3: Cross multiply
    19,668.12x = 27,138.96 × 11,283
  4. Step 4: Simplify right side
    19,668.12x = 306,208,885.68
  5. Step 5: Solve for x
    x = 306,208,885.68/19,668.12
  6. Step 6: Final answer
    x = 15,568.79

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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.