Home / 11,747.82-16,212.99-6,443.67

Finding the Fourth Proportional to 11,747.82, 16,212.99 and 6,443.67

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Solution

The fourth proportional to 11,747.82, 16,212.99 and 6,443.67 is: 8,892.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,747.82 : 16,212.99 = 6,443.67 : x
  2. Step 2: Convert to fraction form
    11,747.82/16,212.99 = 6,443.67/x
  3. Step 3: Cross multiply
    11,747.82x = 16,212.99 × 6,443.67
  4. Step 4: Simplify right side
    11,747.82x = 104,471,157.27
  5. Step 5: Solve for x
    x = 104,471,157.27/11,747.82
  6. Step 6: Final answer
    x = 8,892.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.