Home / 19,418.57-26,786.81-13,453.73

Finding the Fourth Proportional to 19,418.57, 26,786.81 and 13,453.73

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Solution

The fourth proportional to 19,418.57, 26,786.81 and 13,453.73 is: 18,558.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,418.57 : 26,786.81 = 13,453.73 : x
  2. Step 2: Convert to fraction form
    19,418.57/26,786.81 = 13,453.73/x
  3. Step 3: Cross multiply
    19,418.57x = 26,786.81 × 13,453.73
  4. Step 4: Simplify right side
    19,418.57x = 360,382,442.03
  5. Step 5: Solve for x
    x = 360,382,442.03/19,418.57
  6. Step 6: Final answer
    x = 18,558.65

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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.