Home / 18,131.68-25,022.16-10,174.12

Finding the Fourth Proportional to 18,131.68, 25,022.16 and 10,174.12

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Solution

The fourth proportional to 18,131.68, 25,022.16 and 10,174.12 is: 14,040.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,131.68 : 25,022.16 = 10,174.12 : x
  2. Step 2: Convert to fraction form
    18,131.68/25,022.16 = 10,174.12/x
  3. Step 3: Cross multiply
    18,131.68x = 25,022.16 × 10,174.12
  4. Step 4: Simplify right side
    18,131.68x = 254,578,458.50
  5. Step 5: Solve for x
    x = 254,578,458.50/18,131.68
  6. Step 6: Final answer
    x = 14,040.53

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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.