Home / 9,887-18,859

Finding the Third Proportional to 9,887 and 18,859

Calculator

Solution

The third proportional to 9,887 and 18,859 is: 35,972.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,887 : 18,859 = 18,859 : x
  2. Step 2: Convert to fraction form
    9,887/18,859 = 18,859/x
  3. Step 3: Cross multiply
    9,887x = 18,859 × 18,859
  4. Step 4: Simplify right side
    9,887x = 355,661,881
  5. Step 5: Solve for x
    x = 355,661,881/9,887
  6. Step 6: Final answer
    x = 35,972.68

Related Problems

Find third proportional to 4,943.50 and 9,429.50
Half scale
Find third proportional to 19,774 and 37,718
Double scale
Find third proportional to 9,889 and 18,863
Similar ratio
Find third proportional to 14,830.50 and 28,288.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.91) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.