Home / 18,163.56-25,065.48-10,205.64

Finding the Fourth Proportional to 18,163.56, 25,065.48 and 10,205.64

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Solution

The fourth proportional to 18,163.56, 25,065.48 and 10,205.64 is: 14,083.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,163.56 : 25,065.48 = 10,205.64 : x
  2. Step 2: Convert to fraction form
    18,163.56/25,065.48 = 10,205.64/x
  3. Step 3: Cross multiply
    18,163.56x = 25,065.48 × 10,205.64
  4. Step 4: Simplify right side
    18,163.56x = 255,809,265.31
  5. Step 5: Solve for x
    x = 255,809,265.31/18,163.56
  6. Step 6: Final answer
    x = 14,083.65

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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.