Home / 7,974.15-11,961.23-3,813.18

Finding the Fourth Proportional to 7,974.15, 11,961.23 and 3,813.18

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Solution

The fourth proportional to 7,974.15, 11,961.23 and 3,813.18 is: 5,719.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,974.15 : 11,961.23 = 3,813.18 : x
  2. Step 2: Convert to fraction form
    7,974.15/11,961.23 = 3,813.18/x
  3. Step 3: Cross multiply
    7,974.15x = 11,961.23 × 3,813.18
  4. Step 4: Simplify right side
    7,974.15x = 45,610,323.01
  5. Step 5: Solve for x
    x = 45,610,323.01/7,974.15
  6. Step 6: Final answer
    x = 5,719.77

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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.