Home / 8,181.40-12,274.73-4,020.56

Finding the Fourth Proportional to 8,181.40, 12,274.73 and 4,020.56

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Solution

The fourth proportional to 8,181.40, 12,274.73 and 4,020.56 is: 6,032.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,181.40 : 12,274.73 = 4,020.56 : x
  2. Step 2: Convert to fraction form
    8,181.40/12,274.73 = 4,020.56/x
  3. Step 3: Cross multiply
    8,181.40x = 12,274.73 × 4,020.56
  4. Step 4: Simplify right side
    8,181.40x = 49,351,288.45
  5. Step 5: Solve for x
    x = 49,351,288.45/8,181.40
  6. Step 6: Final answer
    x = 6,032.13

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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.