Home / 17,120.39-25,645.21-10,078.71

Finding the Fourth Proportional to 17,120.39, 25,645.21 and 10,078.71

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Solution

The fourth proportional to 17,120.39, 25,645.21 and 10,078.71 is: 15,097.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,120.39 : 25,645.21 = 10,078.71 : x
  2. Step 2: Convert to fraction form
    17,120.39/25,645.21 = 10,078.71/x
  3. Step 3: Cross multiply
    17,120.39x = 25,645.21 × 10,078.71
  4. Step 4: Simplify right side
    17,120.39x = 258,470,634.48
  5. Step 5: Solve for x
    x = 258,470,634.48/17,120.39
  6. Step 6: Final answer
    x = 15,097.24

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1.5x scale

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.