Home / 19,696.88-27,186.36-11,318.24

Finding the Fourth Proportional to 19,696.88, 27,186.36 and 11,318.24

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Solution

The fourth proportional to 19,696.88, 27,186.36 and 11,318.24 is: 15,621.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,696.88 : 27,186.36 = 11,318.24 : x
  2. Step 2: Convert to fraction form
    19,696.88/27,186.36 = 11,318.24/x
  3. Step 3: Cross multiply
    19,696.88x = 27,186.36 × 11,318.24
  4. Step 4: Simplify right side
    19,696.88x = 307,701,747.21
  5. Step 5: Solve for x
    x = 307,701,747.21/19,696.88
  6. Step 6: Final answer
    x = 15,621.85

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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.