Home / 9,779-13,286

Finding the Third Proportional to 9,779 and 13,286

Calculator

Solution

The third proportional to 9,779 and 13,286 is: 18,050.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,779 : 13,286 = 13,286 : x
  2. Step 2: Convert to fraction form
    9,779/13,286 = 13,286/x
  3. Step 3: Cross multiply
    9,779x = 13,286 × 13,286
  4. Step 4: Simplify right side
    9,779x = 176,517,796
  5. Step 5: Solve for x
    x = 176,517,796/9,779
  6. Step 6: Final answer
    x = 18,050.70

Related Problems

Find third proportional to 4,889.50 and 6,643
Half scale
Find third proportional to 19,558 and 26,572
Double scale
Find third proportional to 9,781 and 13,289
Similar ratio
Find third proportional to 14,668.50 and 19,929
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.