Home / 9,309-11,839.50

Finding the Third Proportional to 9,309 and 11,839.50

Calculator

Solution

The third proportional to 9,309 and 11,839.50 is: 15,057.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,309 : 11,839.50 = 11,839.50 : x
  2. Step 2: Convert to fraction form
    9,309/11,839.50 = 11,839.50/x
  3. Step 3: Cross multiply
    9,309x = 11,839.50 × 11,839.50
  4. Step 4: Simplify right side
    9,309x = 140,173,760.25
  5. Step 5: Solve for x
    x = 140,173,760.25/9,309
  6. Step 6: Final answer
    x = 15,057.88

Related Problems

Find third proportional to 4,654.50 and 5,919.75
Half scale
Find third proportional to 18,618 and 23,679
Double scale
Find third proportional to 9,311 and 11,842
Similar ratio
Find third proportional to 13,963.50 and 17,759.25
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.27) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.