Home / 12,419.50-18,629.30-11,796.61

Finding the Fourth Proportional to 12,419.50, 18,629.30 and 11,796.61

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Solution

The fourth proportional to 12,419.50, 18,629.30 and 11,796.61 is: 17,694.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,419.50 : 18,629.30 = 11,796.61 : x
  2. Step 2: Convert to fraction form
    12,419.50/18,629.30 = 11,796.61/x
  3. Step 3: Cross multiply
    12,419.50x = 18,629.30 × 11,796.61
  4. Step 4: Simplify right side
    12,419.50x = 219,762,586.67
  5. Step 5: Solve for x
    x = 219,762,586.67/12,419.50
  6. Step 6: Final answer
    x = 17,694.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.