Home / 7,812-17,930

Finding the Third Proportional to 7,812 and 17,930

Calculator

Solution

The third proportional to 7,812 and 17,930 is: 41,152.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,812 : 17,930 = 17,930 : x
  2. Step 2: Convert to fraction form
    7,812/17,930 = 17,930/x
  3. Step 3: Cross multiply
    7,812x = 17,930 × 17,930
  4. Step 4: Simplify right side
    7,812x = 321,484,900
  5. Step 5: Solve for x
    x = 321,484,900/7,812
  6. Step 6: Final answer
    x = 41,152.70

Related Problems

Find third proportional to 3,906 and 8,965
Half scale
Find third proportional to 15,624 and 35,860
Double scale
Find third proportional to 7,814 and 17,935
Similar ratio
Find third proportional to 11,718 and 26,895
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.