Home / 7,825.95-11,738.70-3,144.51

Finding the Fourth Proportional to 7,825.95, 11,738.70 and 3,144.51

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Solution

The fourth proportional to 7,825.95, 11,738.70 and 3,144.51 is: 4,716.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,825.95 : 11,738.70 = 3,144.51 : x
  2. Step 2: Convert to fraction form
    7,825.95/11,738.70 = 3,144.51/x
  3. Step 3: Cross multiply
    7,825.95x = 11,738.70 × 3,144.51
  4. Step 4: Simplify right side
    7,825.95x = 36,912,459.54
  5. Step 5: Solve for x
    x = 36,912,459.54/7,825.95
  6. Step 6: Final answer
    x = 4,716.67

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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.