Home / 18,351.24-25,321.08-11,179.32

Finding the Fourth Proportional to 18,351.24, 25,321.08 and 11,179.32

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Solution

The fourth proportional to 18,351.24, 25,321.08 and 11,179.32 is: 15,425.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,351.24 : 25,321.08 = 11,179.32 : x
  2. Step 2: Convert to fraction form
    18,351.24/25,321.08 = 11,179.32/x
  3. Step 3: Cross multiply
    18,351.24x = 25,321.08 × 11,179.32
  4. Step 4: Simplify right side
    18,351.24x = 283,072,456.07
  5. Step 5: Solve for x
    x = 283,072,456.07/18,351.24
  6. Step 6: Final answer
    x = 15,425.25

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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.