Home / 8,178-9,618

Finding the Third Proportional to 8,178 and 9,618

Calculator

Solution

The third proportional to 8,178 and 9,618 is: 11,311.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,178 : 9,618 = 9,618 : x
  2. Step 2: Convert to fraction form
    8,178/9,618 = 9,618/x
  3. Step 3: Cross multiply
    8,178x = 9,618 × 9,618
  4. Step 4: Simplify right side
    8,178x = 92,505,924
  5. Step 5: Solve for x
    x = 92,505,924/8,178
  6. Step 6: Final answer
    x = 11,311.56

Related Problems

Find third proportional to 4,089 and 4,809
Half scale
Find third proportional to 16,356 and 19,236
Double scale
Find third proportional to 8,180 and 9,620
Similar ratio
Find third proportional to 12,267 and 14,427
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.