Home / 12,450.12-17,181.36-6,861.12

Finding the Fourth Proportional to 12,450.12, 17,181.36 and 6,861.12

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Solution

The fourth proportional to 12,450.12, 17,181.36 and 6,861.12 is: 9,468.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,450.12 : 17,181.36 = 6,861.12 : x
  2. Step 2: Convert to fraction form
    12,450.12/17,181.36 = 6,861.12/x
  3. Step 3: Cross multiply
    12,450.12x = 17,181.36 × 6,861.12
  4. Step 4: Simplify right side
    12,450.12x = 117,883,372.72
  5. Step 5: Solve for x
    x = 117,883,372.72/12,450.12
  6. Step 6: Final answer
    x = 9,468.45

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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.