Home / 9,866-21,391

Finding the Third Proportional to 9,866 and 21,391

Calculator

Solution

The third proportional to 9,866 and 21,391 is: 46,378.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,866 : 21,391 = 21,391 : x
  2. Step 2: Convert to fraction form
    9,866/21,391 = 21,391/x
  3. Step 3: Cross multiply
    9,866x = 21,391 × 21,391
  4. Step 4: Simplify right side
    9,866x = 457,574,881
  5. Step 5: Solve for x
    x = 457,574,881/9,866
  6. Step 6: Final answer
    x = 46,378.97

Related Problems

Find third proportional to 4,933 and 10,695.50
Half scale
Find third proportional to 19,732 and 42,782
Double scale
Find third proportional to 9,868 and 21,395
Similar ratio
Find third proportional to 14,799 and 32,086.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.