Home / 7,912.63-11,869.86-3,529.54

Finding the Fourth Proportional to 7,912.63, 11,869.86 and 3,529.54

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Solution

The fourth proportional to 7,912.63, 11,869.86 and 3,529.54 is: 5,294.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,912.63 : 11,869.86 = 3,529.54 : x
  2. Step 2: Convert to fraction form
    7,912.63/11,869.86 = 3,529.54/x
  3. Step 3: Cross multiply
    7,912.63x = 11,869.86 × 3,529.54
  4. Step 4: Simplify right side
    7,912.63x = 41,895,145.66
  5. Step 5: Solve for x
    x = 41,895,145.66/7,912.63
  6. Step 6: Final answer
    x = 5,294.72

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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.