Home / 4,640-9,955

Finding the Third Proportional to 4,640 and 9,955

Calculator

Solution

The third proportional to 4,640 and 9,955 is: 21,358.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,640 : 9,955 = 9,955 : x
  2. Step 2: Convert to fraction form
    4,640/9,955 = 9,955/x
  3. Step 3: Cross multiply
    4,640x = 9,955 × 9,955
  4. Step 4: Simplify right side
    4,640x = 99,102,025
  5. Step 5: Solve for x
    x = 99,102,025/4,640
  6. Step 6: Final answer
    x = 21,358.20

Related Problems

Find third proportional to 2,320 and 4,977.50
Half scale
Find third proportional to 9,280 and 19,910
Double scale
Find third proportional to 4,642 and 9,959
Similar ratio
Find third proportional to 6,960 and 14,932.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.