Home / 18,126.98-25,015.62-10,169.78

Finding the Fourth Proportional to 18,126.98, 25,015.62 and 10,169.78

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Solution

The fourth proportional to 18,126.98, 25,015.62 and 10,169.78 is: 14,034.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,126.98 : 25,015.62 = 10,169.78 : x
  2. Step 2: Convert to fraction form
    18,126.98/25,015.62 = 10,169.78/x
  3. Step 3: Cross multiply
    18,126.98x = 25,015.62 × 10,169.78
  4. Step 4: Simplify right side
    18,126.98x = 254,403,351.96
  5. Step 5: Solve for x
    x = 254,403,351.96/18,126.98
  6. Step 6: Final answer
    x = 14,034.51

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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.