Home / 11,592-15,420

Finding the Third Proportional to 11,592 and 15,420

Calculator

Solution

The third proportional to 11,592 and 15,420 is: 20,512.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,592 : 15,420 = 15,420 : x
  2. Step 2: Convert to fraction form
    11,592/15,420 = 15,420/x
  3. Step 3: Cross multiply
    11,592x = 15,420 × 15,420
  4. Step 4: Simplify right side
    11,592x = 237,776,400
  5. Step 5: Solve for x
    x = 237,776,400/11,592
  6. Step 6: Final answer
    x = 20,512.11

Related Problems

Find third proportional to 5,796 and 7,710
Half scale
Find third proportional to 23,184 and 30,840
Double scale
Find third proportional to 11,594 and 15,423
Similar ratio
Find third proportional to 17,388 and 23,130
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.