Home / 7,138-15,644

Finding the Third Proportional to 7,138 and 15,644

Calculator

Solution

The third proportional to 7,138 and 15,644 is: 34,286.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,138 : 15,644 = 15,644 : x
  2. Step 2: Convert to fraction form
    7,138/15,644 = 15,644/x
  3. Step 3: Cross multiply
    7,138x = 15,644 × 15,644
  4. Step 4: Simplify right side
    7,138x = 244,734,736
  5. Step 5: Solve for x
    x = 244,734,736/7,138
  6. Step 6: Final answer
    x = 34,286.18

Related Problems

Find third proportional to 3,569 and 7,822
Half scale
Find third proportional to 14,276 and 31,288
Double scale
Find third proportional to 7,140 and 15,648
Similar ratio
Find third proportional to 10,707 and 23,466
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.