Home / 18,791.36-25,932.09-10,407.86

Finding the Fourth Proportional to 18,791.36, 25,932.09 and 10,407.86

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Solution

The fourth proportional to 18,791.36, 25,932.09 and 10,407.86 is: 14,362.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,791.36 : 25,932.09 = 10,407.86 : x
  2. Step 2: Convert to fraction form
    18,791.36/25,932.09 = 10,407.86/x
  3. Step 3: Cross multiply
    18,791.36x = 25,932.09 × 10,407.86
  4. Step 4: Simplify right side
    18,791.36x = 269,897,432.57
  5. Step 5: Solve for x
    x = 269,897,432.57/18,791.36
  6. Step 6: Final answer
    x = 14,362.85

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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.