Home / 13,716.64-20,571.87-6,313.99

Finding the Fourth Proportional to 13,716.64, 20,571.87 and 6,313.99

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Solution

The fourth proportional to 13,716.64, 20,571.87 and 6,313.99 is: 9,469.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,716.64 : 20,571.87 = 6,313.99 : x
  2. Step 2: Convert to fraction form
    13,716.64/20,571.87 = 6,313.99/x
  3. Step 3: Cross multiply
    13,716.64x = 20,571.87 × 6,313.99
  4. Step 4: Simplify right side
    13,716.64x = 129,890,581.46
  5. Step 5: Solve for x
    x = 129,890,581.46/13,716.64
  6. Step 6: Final answer
    x = 9,469.56

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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.