Home / 19,760.57-27,268.41-11,261.51

Finding the Fourth Proportional to 19,760.57, 27,268.41 and 11,261.51

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Solution

The fourth proportional to 19,760.57, 27,268.41 and 11,261.51 is: 15,540.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,760.57 : 27,268.41 = 11,261.51 : x
  2. Step 2: Convert to fraction form
    19,760.57/27,268.41 = 11,261.51/x
  3. Step 3: Cross multiply
    19,760.57x = 27,268.41 × 11,261.51
  4. Step 4: Simplify right side
    19,760.57x = 307,083,471.90
  5. Step 5: Solve for x
    x = 307,083,471.90/19,760.57
  6. Step 6: Final answer
    x = 15,540.21

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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.