Home / 4,979-8,175

Finding the Third Proportional to 4,979 and 8,175

Calculator

Solution

The third proportional to 4,979 and 8,175 is: 13,422.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,979 : 8,175 = 8,175 : x
  2. Step 2: Convert to fraction form
    4,979/8,175 = 8,175/x
  3. Step 3: Cross multiply
    4,979x = 8,175 × 8,175
  4. Step 4: Simplify right side
    4,979x = 66,830,625
  5. Step 5: Solve for x
    x = 66,830,625/4,979
  6. Step 6: Final answer
    x = 13,422.50

Related Problems

Find third proportional to 2,489.50 and 4,087.50
Half scale
Find third proportional to 9,958 and 16,350
Double scale
Find third proportional to 4,981 and 8,178
Similar ratio
Find third proportional to 7,468.50 and 12,262.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.64) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.