Home / 18,153.45-25,057.89-11,450.25

Finding the Fourth Proportional to 18,153.45, 25,057.89 and 11,450.25

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Solution

The fourth proportional to 18,153.45, 25,057.89 and 11,450.25 is: 15,805.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,153.45 : 25,057.89 = 11,450.25 : x
  2. Step 2: Convert to fraction form
    18,153.45/25,057.89 = 11,450.25/x
  3. Step 3: Cross multiply
    18,153.45x = 25,057.89 × 11,450.25
  4. Step 4: Simplify right side
    18,153.45x = 286,919,104.97
  5. Step 5: Solve for x
    x = 286,919,104.97/18,153.45
  6. Step 6: Final answer
    x = 15,805.21

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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.