Home / 18,131.78-25,021.77-10,174.04

Finding the Fourth Proportional to 18,131.78, 25,021.77 and 10,174.04

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Solution

The fourth proportional to 18,131.78, 25,021.77 and 10,174.04 is: 14,040.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,131.78 : 25,021.77 = 10,174.04 : x
  2. Step 2: Convert to fraction form
    18,131.78/25,021.77 = 10,174.04/x
  3. Step 3: Cross multiply
    18,131.78x = 25,021.77 × 10,174.04
  4. Step 4: Simplify right side
    18,131.78x = 254,572,363.74
  5. Step 5: Solve for x
    x = 254,572,363.74/18,131.78
  6. Step 6: Final answer
    x = 14,040.12

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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.