Home / 13,696.41-18,883.91-11,431.01

Finding the Fourth Proportional to 13,696.41, 18,883.91 and 11,431.01

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Solution

The fourth proportional to 13,696.41, 18,883.91 and 11,431.01 is: 15,760.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,696.41 : 18,883.91 = 11,431.01 : x
  2. Step 2: Convert to fraction form
    13,696.41/18,883.91 = 11,431.01/x
  3. Step 3: Cross multiply
    13,696.41x = 18,883.91 × 11,431.01
  4. Step 4: Simplify right side
    13,696.41x = 215,862,164.05
  5. Step 5: Solve for x
    x = 215,862,164.05/13,696.41
  6. Step 6: Final answer
    x = 15,760.49

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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.