Home / 11,619.20-17,430.60-3,825.56

Finding the Fourth Proportional to 11,619.20, 17,430.60 and 3,825.56

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Solution

The fourth proportional to 11,619.20, 17,430.60 and 3,825.56 is: 5,738.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,619.20 : 17,430.60 = 3,825.56 : x
  2. Step 2: Convert to fraction form
    11,619.20/17,430.60 = 3,825.56/x
  3. Step 3: Cross multiply
    11,619.20x = 17,430.60 × 3,825.56
  4. Step 4: Simplify right side
    11,619.20x = 66,681,806.14
  5. Step 5: Solve for x
    x = 66,681,806.14/11,619.20
  6. Step 6: Final answer
    x = 5,738.93

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1.5x scale

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.