Home / 11,388-15,386

Finding the Third Proportional to 11,388 and 15,386

Calculator

Solution

The third proportional to 11,388 and 15,386 is: 20,787.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,388 : 15,386 = 15,386 : x
  2. Step 2: Convert to fraction form
    11,388/15,386 = 15,386/x
  3. Step 3: Cross multiply
    11,388x = 15,386 × 15,386
  4. Step 4: Simplify right side
    11,388x = 236,728,996
  5. Step 5: Solve for x
    x = 236,728,996/11,388
  6. Step 6: Final answer
    x = 20,787.58

Related Problems

Find third proportional to 5,694 and 7,693
Half scale
Find third proportional to 22,776 and 30,772
Double scale
Find third proportional to 11,390 and 15,389
Similar ratio
Find third proportional to 17,082 and 23,079
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.