Home / 15,888-17,328

Finding the Third Proportional to 15,888 and 17,328

Calculator

Solution

The third proportional to 15,888 and 17,328 is: 18,898.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,888 : 17,328 = 17,328 : x
  2. Step 2: Convert to fraction form
    15,888/17,328 = 17,328/x
  3. Step 3: Cross multiply
    15,888x = 17,328 × 17,328
  4. Step 4: Simplify right side
    15,888x = 300,259,584
  5. Step 5: Solve for x
    x = 300,259,584/15,888
  6. Step 6: Final answer
    x = 18,898.51

Related Problems

Find third proportional to 7,944 and 8,664
Half scale
Find third proportional to 31,776 and 34,656
Double scale
Find third proportional to 15,890 and 17,330
Similar ratio
Find third proportional to 23,832 and 25,992
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.