Home / 7,212-15,991

Finding the Third Proportional to 7,212 and 15,991

Calculator

Solution

The third proportional to 7,212 and 15,991 is: 35,456.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,212 : 15,991 = 15,991 : x
  2. Step 2: Convert to fraction form
    7,212/15,991 = 15,991/x
  3. Step 3: Cross multiply
    7,212x = 15,991 × 15,991
  4. Step 4: Simplify right side
    7,212x = 255,712,081
  5. Step 5: Solve for x
    x = 255,712,081/7,212
  6. Step 6: Final answer
    x = 35,456.47

Related Problems

Find third proportional to 3,606 and 7,995.50
Half scale
Find third proportional to 14,424 and 31,982
Double scale
Find third proportional to 7,214 and 15,995
Similar ratio
Find third proportional to 10,818 and 23,986.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.