Home / 14,974.94-20,665.20-8,260.55

Finding the Fourth Proportional to 14,974.94, 20,665.20 and 8,260.55

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Solution

The fourth proportional to 14,974.94, 20,665.20 and 8,260.55 is: 11,399.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,974.94 : 20,665.20 = 8,260.55 : x
  2. Step 2: Convert to fraction form
    14,974.94/20,665.20 = 8,260.55/x
  3. Step 3: Cross multiply
    14,974.94x = 20,665.20 × 8,260.55
  4. Step 4: Simplify right side
    14,974.94x = 170,705,923.01
  5. Step 5: Solve for x
    x = 170,705,923.01/14,974.94
  6. Step 6: Final answer
    x = 11,399.44

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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.