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Finding the Fourth Proportional to 12,245.58, 16,900.52 and 11,912.00

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Solution

The fourth proportional to 12,245.58, 16,900.52 and 11,912.00 is: 16,440.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,245.58 : 16,900.52 = 11,912.00 : x
  2. Step 2: Convert to fraction form
    12,245.58/16,900.52 = 11,912.00/x
  3. Step 3: Cross multiply
    12,245.58x = 16,900.52 × 11,912.00
  4. Step 4: Simplify right side
    12,245.58x = 201,318,850.18
  5. Step 5: Solve for x
    x = 201,318,850.18/12,245.58
  6. Step 6: Final answer
    x = 16,440.12

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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.