Home / 8,009-11,988

Finding the Third Proportional to 8,009 and 11,988

Calculator

Solution

The third proportional to 8,009 and 11,988 is: 17,943.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,009 : 11,988 = 11,988 : x
  2. Step 2: Convert to fraction form
    8,009/11,988 = 11,988/x
  3. Step 3: Cross multiply
    8,009x = 11,988 × 11,988
  4. Step 4: Simplify right side
    8,009x = 143,712,144
  5. Step 5: Solve for x
    x = 143,712,144/8,009
  6. Step 6: Final answer
    x = 17,943.83

Related Problems

Find third proportional to 4,004.50 and 5,994
Half scale
Find third proportional to 16,018 and 23,976
Double scale
Find third proportional to 8,011 and 11,991
Similar ratio
Find third proportional to 12,013.50 and 17,982
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.