Home / 4,247-7,891

Finding the Third Proportional to 4,247 and 7,891

Calculator

Solution

The third proportional to 4,247 and 7,891 is: 14,661.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,247 : 7,891 = 7,891 : x
  2. Step 2: Convert to fraction form
    4,247/7,891 = 7,891/x
  3. Step 3: Cross multiply
    4,247x = 7,891 × 7,891
  4. Step 4: Simplify right side
    4,247x = 62,267,881
  5. Step 5: Solve for x
    x = 62,267,881/4,247
  6. Step 6: Final answer
    x = 14,661.62

Related Problems

Find third proportional to 2,123.50 and 3,945.50
Half scale
Find third proportional to 8,494 and 15,782
Double scale
Find third proportional to 4,249 and 7,895
Similar ratio
Find third proportional to 6,370.50 and 11,836.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.86) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.