Home / 7,240-15,020

Finding the Third Proportional to 7,240 and 15,020

Calculator

Solution

The third proportional to 7,240 and 15,020 is: 31,160.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,240 : 15,020 = 15,020 : x
  2. Step 2: Convert to fraction form
    7,240/15,020 = 15,020/x
  3. Step 3: Cross multiply
    7,240x = 15,020 × 15,020
  4. Step 4: Simplify right side
    7,240x = 225,600,400
  5. Step 5: Solve for x
    x = 225,600,400/7,240
  6. Step 6: Final answer
    x = 31,160.28

Related Problems

Find third proportional to 3,620 and 7,510
Half scale
Find third proportional to 14,480 and 30,040
Double scale
Find third proportional to 7,242 and 15,024
Similar ratio
Find third proportional to 10,860 and 22,530
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.