Home / 11,645.28-17,471.14-3,859.56

Finding the Fourth Proportional to 11,645.28, 17,471.14 and 3,859.56

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Solution

The fourth proportional to 11,645.28, 17,471.14 and 3,859.56 is: 5,790.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,645.28 : 17,471.14 = 3,859.56 : x
  2. Step 2: Convert to fraction form
    11,645.28/17,471.14 = 3,859.56/x
  3. Step 3: Cross multiply
    11,645.28x = 17,471.14 × 3,859.56
  4. Step 4: Simplify right side
    11,645.28x = 67,430,913.10
  5. Step 5: Solve for x
    x = 67,430,913.10/11,645.28
  6. Step 6: Final answer
    x = 5,790.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.