Home / 11,825.56-17,742.66-7,211.80

Finding the Fourth Proportional to 11,825.56, 17,742.66 and 7,211.80

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Solution

The fourth proportional to 11,825.56, 17,742.66 and 7,211.80 is: 10,820.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,825.56 : 17,742.66 = 7,211.80 : x
  2. Step 2: Convert to fraction form
    11,825.56/17,742.66 = 7,211.80/x
  3. Step 3: Cross multiply
    11,825.56x = 17,742.66 × 7,211.80
  4. Step 4: Simplify right side
    11,825.56x = 127,956,515.39
  5. Step 5: Solve for x
    x = 127,956,515.39/11,825.56
  6. Step 6: Final answer
    x = 10,820.33

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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.