Home / 7,910-12,944

Finding the Third Proportional to 7,910 and 12,944

Calculator

Solution

The third proportional to 7,910 and 12,944 is: 21,181.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,910 : 12,944 = 12,944 : x
  2. Step 2: Convert to fraction form
    7,910/12,944 = 12,944/x
  3. Step 3: Cross multiply
    7,910x = 12,944 × 12,944
  4. Step 4: Simplify right side
    7,910x = 167,547,136
  5. Step 5: Solve for x
    x = 167,547,136/7,910
  6. Step 6: Final answer
    x = 21,181.69

Related Problems

Find third proportional to 3,955 and 6,472
Half scale
Find third proportional to 15,820 and 25,888
Double scale
Find third proportional to 7,912 and 12,947
Similar ratio
Find third proportional to 11,865 and 19,416
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.64) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.