Home / 8,770-12,776

Finding the Third Proportional to 8,770 and 12,776

Calculator

Solution

The third proportional to 8,770 and 12,776 is: 18,611.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,770 : 12,776 = 12,776 : x
  2. Step 2: Convert to fraction form
    8,770/12,776 = 12,776/x
  3. Step 3: Cross multiply
    8,770x = 12,776 × 12,776
  4. Step 4: Simplify right side
    8,770x = 163,226,176
  5. Step 5: Solve for x
    x = 163,226,176/8,770
  6. Step 6: Final answer
    x = 18,611.88

Related Problems

Find third proportional to 4,385 and 6,388
Half scale
Find third proportional to 17,540 and 25,552
Double scale
Find third proportional to 8,772 and 12,779
Similar ratio
Find third proportional to 13,155 and 19,164
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.