Home / 7,972.64-11,958.97-3,811.67

Finding the Fourth Proportional to 7,972.64, 11,958.97 and 3,811.67

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Solution

The fourth proportional to 7,972.64, 11,958.97 and 3,811.67 is: 5,717.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,972.64 : 11,958.97 = 3,811.67 : x
  2. Step 2: Convert to fraction form
    7,972.64/11,958.97 = 3,811.67/x
  3. Step 3: Cross multiply
    7,972.64x = 11,958.97 × 3,811.67
  4. Step 4: Simplify right side
    7,972.64x = 45,583,647.18
  5. Step 5: Solve for x
    x = 45,583,647.18/7,972.64
  6. Step 6: Final answer
    x = 5,717.51

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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.