Home / 4,472-7,142

Finding the Third Proportional to 4,472 and 7,142

Calculator

Solution

The third proportional to 4,472 and 7,142 is: 11,406.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,472 : 7,142 = 7,142 : x
  2. Step 2: Convert to fraction form
    4,472/7,142 = 7,142/x
  3. Step 3: Cross multiply
    4,472x = 7,142 × 7,142
  4. Step 4: Simplify right side
    4,472x = 51,008,164
  5. Step 5: Solve for x
    x = 51,008,164/4,472
  6. Step 6: Final answer
    x = 11,406.12

Related Problems

Find third proportional to 2,236 and 3,571
Half scale
Find third proportional to 8,944 and 14,284
Double scale
Find third proportional to 4,474 and 7,145
Similar ratio
Find third proportional to 6,708 and 10,713
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.