Home / 12,747.42-19,114.92-3,982.32

Finding the Fourth Proportional to 12,747.42, 19,114.92 and 3,982.32

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Solution

The fourth proportional to 12,747.42, 19,114.92 and 3,982.32 is: 5,971.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,747.42 : 19,114.92 = 3,982.32 : x
  2. Step 2: Convert to fraction form
    12,747.42/19,114.92 = 3,982.32/x
  3. Step 3: Cross multiply
    12,747.42x = 19,114.92 × 3,982.32
  4. Step 4: Simplify right side
    12,747.42x = 76,121,728.21
  5. Step 5: Solve for x
    x = 76,121,728.21/12,747.42
  6. Step 6: Final answer
    x = 5,971.54

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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.