Home / 18,146.25-25,039.80-10,187.37

Finding the Fourth Proportional to 18,146.25, 25,039.80 and 10,187.37

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Solution

The fourth proportional to 18,146.25, 25,039.80 and 10,187.37 is: 14,057.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,146.25 : 25,039.80 = 10,187.37 : x
  2. Step 2: Convert to fraction form
    18,146.25/25,039.80 = 10,187.37/x
  3. Step 3: Cross multiply
    18,146.25x = 25,039.80 × 10,187.37
  4. Step 4: Simplify right side
    18,146.25x = 255,089,707.33
  5. Step 5: Solve for x
    x = 255,089,707.33/18,146.25
  6. Step 6: Final answer
    x = 14,057.43

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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.