Home / 5,918-12,988

Finding the Third Proportional to 5,918 and 12,988

Calculator

Solution

The third proportional to 5,918 and 12,988 is: 28,504.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,918 : 12,988 = 12,988 : x
  2. Step 2: Convert to fraction form
    5,918/12,988 = 12,988/x
  3. Step 3: Cross multiply
    5,918x = 12,988 × 12,988
  4. Step 4: Simplify right side
    5,918x = 168,688,144
  5. Step 5: Solve for x
    x = 168,688,144/5,918
  6. Step 6: Final answer
    x = 28,504.25

Related Problems

Find third proportional to 2,959 and 6,494
Half scale
Find third proportional to 11,836 and 25,976
Double scale
Find third proportional to 5,920 and 12,992
Similar ratio
Find third proportional to 8,877 and 19,482
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.