Home / 17,138.75-25,671.67-10,111.19

Finding the Fourth Proportional to 17,138.75, 25,671.67 and 10,111.19

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Solution

The fourth proportional to 17,138.75, 25,671.67 and 10,111.19 is: 15,145.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,138.75 : 25,671.67 = 10,111.19 : x
  2. Step 2: Convert to fraction form
    17,138.75/25,671.67 = 10,111.19/x
  3. Step 3: Cross multiply
    17,138.75x = 25,671.67 × 10,111.19
  4. Step 4: Simplify right side
    17,138.75x = 259,570,979.35
  5. Step 5: Solve for x
    x = 259,570,979.35/17,138.75
  6. Step 6: Final answer
    x = 15,145.27

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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.