Home / 12,664.24-18,994.20-3,896.80

Finding the Fourth Proportional to 12,664.24, 18,994.20 and 3,896.80

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Solution

The fourth proportional to 12,664.24, 18,994.20 and 3,896.80 is: 5,844.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,664.24 : 18,994.20 = 3,896.80 : x
  2. Step 2: Convert to fraction form
    12,664.24/18,994.20 = 3,896.80/x
  3. Step 3: Cross multiply
    12,664.24x = 18,994.20 × 3,896.80
  4. Step 4: Simplify right side
    12,664.24x = 74,016,598.56
  5. Step 5: Solve for x
    x = 74,016,598.56/12,664.24
  6. Step 6: Final answer
    x = 5,844.54

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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.