Home / 5,340-9,912

Finding the Third Proportional to 5,340 and 9,912

Calculator

Solution

The third proportional to 5,340 and 9,912 is: 18,398.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,340 : 9,912 = 9,912 : x
  2. Step 2: Convert to fraction form
    5,340/9,912 = 9,912/x
  3. Step 3: Cross multiply
    5,340x = 9,912 × 9,912
  4. Step 4: Simplify right side
    5,340x = 98,247,744
  5. Step 5: Solve for x
    x = 98,247,744/5,340
  6. Step 6: Final answer
    x = 18,398.45

Related Problems

Find third proportional to 2,670 and 4,956
Half scale
Find third proportional to 10,680 and 19,824
Double scale
Find third proportional to 5,342 and 9,916
Similar ratio
Find third proportional to 8,010 and 14,868
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.86) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.