Home / 7,889.00-11,840.78-3,996.14

Finding the Fourth Proportional to 7,889.00, 11,840.78 and 3,996.14

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Solution

The fourth proportional to 7,889.00, 11,840.78 and 3,996.14 is: 5,997.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,889.00 : 11,840.78 = 3,996.14 : x
  2. Step 2: Convert to fraction form
    7,889.00/11,840.78 = 3,996.14/x
  3. Step 3: Cross multiply
    7,889.00x = 11,840.78 × 3,996.14
  4. Step 4: Simplify right side
    7,889.00x = 47,317,365.38
  5. Step 5: Solve for x
    x = 47,317,365.38/7,889.00
  6. Step 6: Final answer
    x = 5,997.90

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1.5x scale

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.