Home / 7,288-15,420

Finding the Third Proportional to 7,288 and 15,420

Calculator

Solution

The third proportional to 7,288 and 15,420 is: 32,625.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,288 : 15,420 = 15,420 : x
  2. Step 2: Convert to fraction form
    7,288/15,420 = 15,420/x
  3. Step 3: Cross multiply
    7,288x = 15,420 × 15,420
  4. Step 4: Simplify right side
    7,288x = 237,776,400
  5. Step 5: Solve for x
    x = 237,776,400/7,288
  6. Step 6: Final answer
    x = 32,625.74

Related Problems

Find third proportional to 3,644 and 7,710
Half scale
Find third proportional to 14,576 and 30,840
Double scale
Find third proportional to 7,290 and 15,424
Similar ratio
Find third proportional to 10,932 and 23,130
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.