Home / 13,756.81-20,635.22-3,896.18

Finding the Fourth Proportional to 13,756.81, 20,635.22 and 3,896.18

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Solution

The fourth proportional to 13,756.81, 20,635.22 and 3,896.18 is: 5,844.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,756.81 : 20,635.22 = 3,896.18 : x
  2. Step 2: Convert to fraction form
    13,756.81/20,635.22 = 3,896.18/x
  3. Step 3: Cross multiply
    13,756.81x = 20,635.22 × 3,896.18
  4. Step 4: Simplify right side
    13,756.81x = 80,398,408.80
  5. Step 5: Solve for x
    x = 80,398,408.80/13,756.81
  6. Step 6: Final answer
    x = 5,844.26

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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.