Home / 19,661.56-27,131.91-11,163.47

Finding the Fourth Proportional to 19,661.56, 27,131.91 and 11,163.47

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Solution

The fourth proportional to 19,661.56, 27,131.91 and 11,163.47 is: 15,405.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,661.56 : 27,131.91 = 11,163.47 : x
  2. Step 2: Convert to fraction form
    19,661.56/27,131.91 = 11,163.47/x
  3. Step 3: Cross multiply
    19,661.56x = 27,131.91 × 11,163.47
  4. Step 4: Simplify right side
    19,661.56x = 302,886,263.33
  5. Step 5: Solve for x
    x = 302,886,263.33/19,661.56
  6. Step 6: Final answer
    x = 15,405.00

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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.