Home / 7,912.35-11,870.09-2,365.59

Finding the Fourth Proportional to 7,912.35, 11,870.09 and 2,365.59

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Solution

The fourth proportional to 7,912.35, 11,870.09 and 2,365.59 is: 3,548.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,912.35 : 11,870.09 = 2,365.59 : x
  2. Step 2: Convert to fraction form
    7,912.35/11,870.09 = 2,365.59/x
  3. Step 3: Cross multiply
    7,912.35x = 11,870.09 × 2,365.59
  4. Step 4: Simplify right side
    7,912.35x = 28,079,754.38
  5. Step 5: Solve for x
    x = 28,079,754.38/7,912.35
  6. Step 6: Final answer
    x = 3,548.85

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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.