Home / 17,381.12-23,979.66-11,416

Finding the Fourth Proportional to 17,381.12, 23,979.66 and 11,416

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Solution

The fourth proportional to 17,381.12, 23,979.66 and 11,416 is: 15,749.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,381.12 : 23,979.66 = 11,416 : x
  2. Step 2: Convert to fraction form
    17,381.12/23,979.66 = 11,416/x
  3. Step 3: Cross multiply
    17,381.12x = 23,979.66 × 11,416
  4. Step 4: Simplify right side
    17,381.12x = 273,751,798.56
  5. Step 5: Solve for x
    x = 273,751,798.56/17,381.12
  6. Step 6: Final answer
    x = 15,749.95

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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.