Home / 19,809.28-27,336.74-11,853.39

Finding the Fourth Proportional to 19,809.28, 27,336.74 and 11,853.39

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Solution

The fourth proportional to 19,809.28, 27,336.74 and 11,853.39 is: 16,357.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,809.28 : 27,336.74 = 11,853.39 : x
  2. Step 2: Convert to fraction form
    19,809.28/27,336.74 = 11,853.39/x
  3. Step 3: Cross multiply
    19,809.28x = 27,336.74 × 11,853.39
  4. Step 4: Simplify right side
    19,809.28x = 324,032,996.70
  5. Step 5: Solve for x
    x = 324,032,996.70/19,809.28
  6. Step 6: Final answer
    x = 16,357.63

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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.