Home / 7,986.56-11,961.37-7,709.76

Finding the Fourth Proportional to 7,986.56, 11,961.37 and 7,709.76

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Solution

The fourth proportional to 7,986.56, 11,961.37 and 7,709.76 is: 11,546.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,986.56 : 11,961.37 = 7,709.76 : x
  2. Step 2: Convert to fraction form
    7,986.56/11,961.37 = 7,709.76/x
  3. Step 3: Cross multiply
    7,986.56x = 11,961.37 × 7,709.76
  4. Step 4: Simplify right side
    7,986.56x = 92,219,343.66
  5. Step 5: Solve for x
    x = 92,219,343.66/7,986.56
  6. Step 6: Final answer
    x = 11,546.82

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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.