Home / 11,440-27,640

Finding the Third Proportional to 11,440 and 27,640

Calculator

Solution

The third proportional to 11,440 and 27,640 is: 66,780.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,440 : 27,640 = 27,640 : x
  2. Step 2: Convert to fraction form
    11,440/27,640 = 27,640/x
  3. Step 3: Cross multiply
    11,440x = 27,640 × 27,640
  4. Step 4: Simplify right side
    11,440x = 763,969,600
  5. Step 5: Solve for x
    x = 763,969,600/11,440
  6. Step 6: Final answer
    x = 66,780.56

Related Problems

Find third proportional to 5,720 and 13,820
Half scale
Find third proportional to 22,880 and 55,280
Double scale
Find third proportional to 11,442 and 27,645
Similar ratio
Find third proportional to 17,160 and 41,460
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.