Home / 8,740-18,080

Finding the Third Proportional to 8,740 and 18,080

Calculator

Solution

The third proportional to 8,740 and 18,080 is: 37,401.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,740 : 18,080 = 18,080 : x
  2. Step 2: Convert to fraction form
    8,740/18,080 = 18,080/x
  3. Step 3: Cross multiply
    8,740x = 18,080 × 18,080
  4. Step 4: Simplify right side
    8,740x = 326,886,400
  5. Step 5: Solve for x
    x = 326,886,400/8,740
  6. Step 6: Final answer
    x = 37,401.19

Related Problems

Find third proportional to 4,370 and 9,040
Half scale
Find third proportional to 17,480 and 36,160
Double scale
Find third proportional to 8,742 and 18,084
Similar ratio
Find third proportional to 13,110 and 27,120
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.