Home / 12,450.56-17,181.44-6,861.60

Finding the Fourth Proportional to 12,450.56, 17,181.44 and 6,861.60

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Solution

The fourth proportional to 12,450.56, 17,181.44 and 6,861.60 is: 9,468.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,450.56 : 17,181.44 = 6,861.60 : x
  2. Step 2: Convert to fraction form
    12,450.56/17,181.44 = 6,861.60/x
  3. Step 3: Cross multiply
    12,450.56x = 17,181.44 × 6,861.60
  4. Step 4: Simplify right side
    12,450.56x = 117,892,168.70
  5. Step 5: Solve for x
    x = 117,892,168.70/12,450.56
  6. Step 6: Final answer
    x = 9,468.82

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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.