Home / 18,132.78-25,022.91-10,174.38

Finding the Fourth Proportional to 18,132.78, 25,022.91 and 10,174.38

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Solution

The fourth proportional to 18,132.78, 25,022.91 and 10,174.38 is: 14,040.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,132.78 : 25,022.91 = 10,174.38 : x
  2. Step 2: Convert to fraction form
    18,132.78/25,022.91 = 10,174.38/x
  3. Step 3: Cross multiply
    18,132.78x = 25,022.91 × 10,174.38
  4. Step 4: Simplify right side
    18,132.78x = 254,592,595.05
  5. Step 5: Solve for x
    x = 254,592,595.05/18,132.78
  6. Step 6: Final answer
    x = 14,040.46

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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.