Home / 13,635.92-18,817.44-8,258.60

Finding the Fourth Proportional to 13,635.92, 18,817.44 and 8,258.60

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Solution

The fourth proportional to 13,635.92, 18,817.44 and 8,258.60 is: 11,396.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,635.92 : 18,817.44 = 8,258.60 : x
  2. Step 2: Convert to fraction form
    13,635.92/18,817.44 = 8,258.60/x
  3. Step 3: Cross multiply
    13,635.92x = 18,817.44 × 8,258.60
  4. Step 4: Simplify right side
    13,635.92x = 155,405,709.98
  5. Step 5: Solve for x
    x = 155,405,709.98/13,635.92
  6. Step 6: Final answer
    x = 11,396.79

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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.