Home / 10,426-15,729

Finding the Third Proportional to 10,426 and 15,729

Calculator

Solution

The third proportional to 10,426 and 15,729 is: 23,729.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,426 : 15,729 = 15,729 : x
  2. Step 2: Convert to fraction form
    10,426/15,729 = 15,729/x
  3. Step 3: Cross multiply
    10,426x = 15,729 × 15,729
  4. Step 4: Simplify right side
    10,426x = 247,401,441
  5. Step 5: Solve for x
    x = 247,401,441/10,426
  6. Step 6: Final answer
    x = 23,729.28

Related Problems

Find third proportional to 5,213 and 7,864.50
Half scale
Find third proportional to 20,852 and 31,458
Double scale
Find third proportional to 10,428 and 15,732
Similar ratio
Find third proportional to 15,639 and 23,593.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.