Home / 18,357.36-25,334.56-10,399.38

Finding the Fourth Proportional to 18,357.36, 25,334.56 and 10,399.38

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Solution

The fourth proportional to 18,357.36, 25,334.56 and 10,399.38 is: 14,351.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,357.36 : 25,334.56 = 10,399.38 : x
  2. Step 2: Convert to fraction form
    18,357.36/25,334.56 = 10,399.38/x
  3. Step 3: Cross multiply
    18,357.36x = 25,334.56 × 10,399.38
  4. Step 4: Simplify right side
    18,357.36x = 263,463,716.57
  5. Step 5: Solve for x
    x = 263,463,716.57/18,357.36
  6. Step 6: Final answer
    x = 14,351.94

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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.