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Finding the Fourth Proportional to 19,238, 26,550.48 and 11,286.92

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Solution

The fourth proportional to 19,238, 26,550.48 and 11,286.92 is: 15,577.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,238 : 26,550.48 = 11,286.92 : x
  2. Step 2: Convert to fraction form
    19,238/26,550.48 = 11,286.92/x
  3. Step 3: Cross multiply
    19,238x = 26,550.48 × 11,286.92
  4. Step 4: Simplify right side
    19,238x = 299,673,143.72
  5. Step 5: Solve for x
    x = 299,673,143.72/19,238
  6. Step 6: Final answer
    x = 15,577.15

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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.