Home / 3,888-9,018

Finding the Third Proportional to 3,888 and 9,018

Calculator

Solution

The third proportional to 3,888 and 9,018 is: 20,916.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,888 : 9,018 = 9,018 : x
  2. Step 2: Convert to fraction form
    3,888/9,018 = 9,018/x
  3. Step 3: Cross multiply
    3,888x = 9,018 × 9,018
  4. Step 4: Simplify right side
    3,888x = 81,324,324
  5. Step 5: Solve for x
    x = 81,324,324/3,888
  6. Step 6: Final answer
    x = 20,916.75

Related Problems

Find third proportional to 1,944 and 4,509
Half scale
Find third proportional to 7,776 and 18,036
Double scale
Find third proportional to 3,890 and 9,023
Similar ratio
Find third proportional to 5,832 and 13,527
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.