Home / 7,912.85-11,869.25-2,069.46

Finding the Fourth Proportional to 7,912.85, 11,869.25 and 2,069.46

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Solution

The fourth proportional to 7,912.85, 11,869.25 and 2,069.46 is: 3,104.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,912.85 : 11,869.25 = 2,069.46 : x
  2. Step 2: Convert to fraction form
    7,912.85/11,869.25 = 2,069.46/x
  3. Step 3: Cross multiply
    7,912.85x = 11,869.25 × 2,069.46
  4. Step 4: Simplify right side
    7,912.85x = 24,562,927.76
  5. Step 5: Solve for x
    x = 24,562,927.76/7,912.85
  6. Step 6: Final answer
    x = 3,104.18

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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.