Home / 18,119.36-25,016.86-11,323.68

Finding the Fourth Proportional to 18,119.36, 25,016.86 and 11,323.68

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Solution

The fourth proportional to 18,119.36, 25,016.86 and 11,323.68 is: 15,634.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,119.36 : 25,016.86 = 11,323.68 : x
  2. Step 2: Convert to fraction form
    18,119.36/25,016.86 = 11,323.68/x
  3. Step 3: Cross multiply
    18,119.36x = 25,016.86 × 11,323.68
  4. Step 4: Simplify right side
    18,119.36x = 283,282,917.24
  5. Step 5: Solve for x
    x = 283,282,917.24/18,119.36
  6. Step 6: Final answer
    x = 15,634.27

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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.