Home / 9,642-13,761

Finding the Third Proportional to 9,642 and 13,761

Calculator

Solution

The third proportional to 9,642 and 13,761 is: 19,639.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,642 : 13,761 = 13,761 : x
  2. Step 2: Convert to fraction form
    9,642/13,761 = 13,761/x
  3. Step 3: Cross multiply
    9,642x = 13,761 × 13,761
  4. Step 4: Simplify right side
    9,642x = 189,365,121
  5. Step 5: Solve for x
    x = 189,365,121/9,642
  6. Step 6: Final answer
    x = 19,639.61

Related Problems

Find third proportional to 4,821 and 6,880.50
Half scale
Find third proportional to 19,284 and 27,522
Double scale
Find third proportional to 9,644 and 13,764
Similar ratio
Find third proportional to 14,463 and 20,641.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.