Home / 19,849.07-27,389.71-11,891.09

Finding the Fourth Proportional to 19,849.07, 27,389.71 and 11,891.09

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Solution

The fourth proportional to 19,849.07, 27,389.71 and 11,891.09 is: 16,408.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,849.07 : 27,389.71 = 11,891.09 : x
  2. Step 2: Convert to fraction form
    19,849.07/27,389.71 = 11,891.09/x
  3. Step 3: Cross multiply
    19,849.07x = 27,389.71 × 11,891.09
  4. Step 4: Simplify right side
    19,849.07x = 325,693,506.68
  5. Step 5: Solve for x
    x = 325,693,506.68/19,849.07
  6. Step 6: Final answer
    x = 16,408.50

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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.