Home / 19,853.55-27,395.89-11,895.57

Finding the Fourth Proportional to 19,853.55, 27,395.89 and 11,895.57

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Solution

The fourth proportional to 19,853.55, 27,395.89 and 11,895.57 is: 16,414.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,853.55 : 27,395.89 = 11,895.57 : x
  2. Step 2: Convert to fraction form
    19,853.55/27,395.89 = 11,895.57/x
  3. Step 3: Cross multiply
    19,853.55x = 27,395.89 × 11,895.57
  4. Step 4: Simplify right side
    19,853.55x = 325,889,667.73
  5. Step 5: Solve for x
    x = 325,889,667.73/19,853.55
  6. Step 6: Final answer
    x = 16,414.68

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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.