Home / 18,171.22-25,078.37-10,105.69

Finding the Fourth Proportional to 18,171.22, 25,078.37 and 10,105.69

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Solution

The fourth proportional to 18,171.22, 25,078.37 and 10,105.69 is: 13,947.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,171.22 : 25,078.37 = 10,105.69 : x
  2. Step 2: Convert to fraction form
    18,171.22/25,078.37 = 10,105.69/x
  3. Step 3: Cross multiply
    18,171.22x = 25,078.37 × 10,105.69
  4. Step 4: Simplify right side
    18,171.22x = 253,434,232.93
  5. Step 5: Solve for x
    x = 253,434,232.93/18,171.22
  6. Step 6: Final answer
    x = 13,947.01

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1.5x scale

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.