Home / 13,912.56-19,198.62-7,623.72

Finding the Fourth Proportional to 13,912.56, 19,198.62 and 7,623.72

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Solution

The fourth proportional to 13,912.56, 19,198.62 and 7,623.72 is: 10,520.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,912.56 : 19,198.62 = 7,623.72 : x
  2. Step 2: Convert to fraction form
    13,912.56/19,198.62 = 7,623.72/x
  3. Step 3: Cross multiply
    13,912.56x = 19,198.62 × 7,623.72
  4. Step 4: Simplify right side
    13,912.56x = 146,364,903.27
  5. Step 5: Solve for x
    x = 146,364,903.27/13,912.56
  6. Step 6: Final answer
    x = 10,520.34

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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.