Home / 11,984.08-18,012.00-9,917.36

Finding the Fourth Proportional to 11,984.08, 18,012.00 and 9,917.36

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Solution

The fourth proportional to 11,984.08, 18,012.00 and 9,917.36 is: 14,905.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,984.08 : 18,012.00 = 9,917.36 : x
  2. Step 2: Convert to fraction form
    11,984.08/18,012.00 = 9,917.36/x
  3. Step 3: Cross multiply
    11,984.08x = 18,012.00 × 9,917.36
  4. Step 4: Simplify right side
    11,984.08x = 178,631,469.98
  5. Step 5: Solve for x
    x = 178,631,469.98/11,984.08
  6. Step 6: Final answer
    x = 14,905.74

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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.