Home / 12,450.64-17,181.84-6,861.64

Finding the Fourth Proportional to 12,450.64, 17,181.84 and 6,861.64

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Solution

The fourth proportional to 12,450.64, 17,181.84 and 6,861.64 is: 9,469.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,450.64 : 17,181.84 = 6,861.64 : x
  2. Step 2: Convert to fraction form
    12,450.64/17,181.84 = 6,861.64/x
  3. Step 3: Cross multiply
    12,450.64x = 17,181.84 × 6,861.64
  4. Step 4: Simplify right side
    12,450.64x = 117,895,600.62
  5. Step 5: Solve for x
    x = 117,895,600.62/12,450.64
  6. Step 6: Final answer
    x = 9,469.04

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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.