Home / 7,939.84-11,902.69-3,012.94

Finding the Fourth Proportional to 7,939.84, 11,902.69 and 3,012.94

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Solution

The fourth proportional to 7,939.84, 11,902.69 and 3,012.94 is: 4,516.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,939.84 : 11,902.69 = 3,012.94 : x
  2. Step 2: Convert to fraction form
    7,939.84/11,902.69 = 3,012.94/x
  3. Step 3: Cross multiply
    7,939.84x = 11,902.69 × 3,012.94
  4. Step 4: Simplify right side
    7,939.84x = 35,862,090.81
  5. Step 5: Solve for x
    x = 35,862,090.81/7,939.84
  6. Step 6: Final answer
    x = 4,516.73

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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.