Home / 5,130-8,181

Finding the Third Proportional to 5,130 and 8,181

Calculator

Solution

The third proportional to 5,130 and 8,181 is: 13,046.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,130 : 8,181 = 8,181 : x
  2. Step 2: Convert to fraction form
    5,130/8,181 = 8,181/x
  3. Step 3: Cross multiply
    5,130x = 8,181 × 8,181
  4. Step 4: Simplify right side
    5,130x = 66,928,761
  5. Step 5: Solve for x
    x = 66,928,761/5,130
  6. Step 6: Final answer
    x = 13,046.54

Related Problems

Find third proportional to 2,565 and 4,090.50
Half scale
Find third proportional to 10,260 and 16,362
Double scale
Find third proportional to 5,132 and 8,184
Similar ratio
Find third proportional to 7,695 and 12,271.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.