Home / 13,756.61-20,635.79-3,896.62

Finding the Fourth Proportional to 13,756.61, 20,635.79 and 3,896.62

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Solution

The fourth proportional to 13,756.61, 20,635.79 and 3,896.62 is: 5,845.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,756.61 : 20,635.79 = 3,896.62 : x
  2. Step 2: Convert to fraction form
    13,756.61/20,635.79 = 3,896.62/x
  3. Step 3: Cross multiply
    13,756.61x = 20,635.79 × 3,896.62
  4. Step 4: Simplify right side
    13,756.61x = 80,409,832.03
  5. Step 5: Solve for x
    x = 80,409,832.03/13,756.61
  6. Step 6: Final answer
    x = 5,845.18

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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.