Home / 7,711-17,991

Finding the Third Proportional to 7,711 and 17,991

Calculator

Solution

The third proportional to 7,711 and 17,991 is: 41,975.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,711 : 17,991 = 17,991 : x
  2. Step 2: Convert to fraction form
    7,711/17,991 = 17,991/x
  3. Step 3: Cross multiply
    7,711x = 17,991 × 17,991
  4. Step 4: Simplify right side
    7,711x = 323,676,081
  5. Step 5: Solve for x
    x = 323,676,081/7,711
  6. Step 6: Final answer
    x = 41,975.89

Related Problems

Find third proportional to 3,855.50 and 8,995.50
Half scale
Find third proportional to 15,422 and 35,982
Double scale
Find third proportional to 7,713 and 17,996
Similar ratio
Find third proportional to 11,566.50 and 26,986.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.