Home / 19,698.56-27,183.82-11,315.12

Finding the Fourth Proportional to 19,698.56, 27,183.82 and 11,315.12

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Solution

The fourth proportional to 19,698.56, 27,183.82 and 11,315.12 is: 15,614.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,698.56 : 27,183.82 = 11,315.12 : x
  2. Step 2: Convert to fraction form
    19,698.56/27,183.82 = 11,315.12/x
  3. Step 3: Cross multiply
    19,698.56x = 27,183.82 × 11,315.12
  4. Step 4: Simplify right side
    19,698.56x = 307,588,185.36
  5. Step 5: Solve for x
    x = 307,588,185.36/19,698.56
  6. Step 6: Final answer
    x = 15,614.75

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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.