Home / 19,399.82-26,771.04-11,858.78

Finding the Fourth Proportional to 19,399.82, 26,771.04 and 11,858.78

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Solution

The fourth proportional to 19,399.82, 26,771.04 and 11,858.78 is: 16,364.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,399.82 : 26,771.04 = 11,858.78 : x
  2. Step 2: Convert to fraction form
    19,399.82/26,771.04 = 11,858.78/x
  3. Step 3: Cross multiply
    19,399.82x = 26,771.04 × 11,858.78
  4. Step 4: Simplify right side
    19,399.82x = 317,471,873.73
  5. Step 5: Solve for x
    x = 317,471,873.73/19,399.82
  6. Step 6: Final answer
    x = 16,364.68

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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.