Home / 18,896.90-26,072.31-12,186.37

Finding the Fourth Proportional to 18,896.90, 26,072.31 and 12,186.37

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Solution

The fourth proportional to 18,896.90, 26,072.31 and 12,186.37 is: 16,813.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,896.90 : 26,072.31 = 12,186.37 : x
  2. Step 2: Convert to fraction form
    18,896.90/26,072.31 = 12,186.37/x
  3. Step 3: Cross multiply
    18,896.90x = 26,072.31 × 12,186.37
  4. Step 4: Simplify right side
    18,896.90x = 317,726,865.21
  5. Step 5: Solve for x
    x = 317,726,865.21/18,896.90
  6. Step 6: Final answer
    x = 16,813.71

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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.