Home / 11,488-15,320

Finding the Third Proportional to 11,488 and 15,320

Calculator

Solution

The third proportional to 11,488 and 15,320 is: 20,430.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,488 : 15,320 = 15,320 : x
  2. Step 2: Convert to fraction form
    11,488/15,320 = 15,320/x
  3. Step 3: Cross multiply
    11,488x = 15,320 × 15,320
  4. Step 4: Simplify right side
    11,488x = 234,702,400
  5. Step 5: Solve for x
    x = 234,702,400/11,488
  6. Step 6: Final answer
    x = 20,430.22

Related Problems

Find third proportional to 5,744 and 7,660
Half scale
Find third proportional to 22,976 and 30,640
Double scale
Find third proportional to 11,490 and 15,323
Similar ratio
Find third proportional to 17,232 and 22,980
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.