Home / 18,539.97-25,576.31-12,163.95

Finding the Fourth Proportional to 18,539.97, 25,576.31 and 12,163.95

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Solution

The fourth proportional to 18,539.97, 25,576.31 and 12,163.95 is: 16,780.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,539.97 : 25,576.31 = 12,163.95 : x
  2. Step 2: Convert to fraction form
    18,539.97/25,576.31 = 12,163.95/x
  3. Step 3: Cross multiply
    18,539.97x = 25,576.31 × 12,163.95
  4. Step 4: Simplify right side
    18,539.97x = 311,108,895.20
  5. Step 5: Solve for x
    x = 311,108,895.20/18,539.97
  6. Step 6: Final answer
    x = 16,780.44

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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.