Home / 4,784-9,872

Finding the Third Proportional to 4,784 and 9,872

Calculator

Solution

The third proportional to 4,784 and 9,872 is: 20,371.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,784 : 9,872 = 9,872 : x
  2. Step 2: Convert to fraction form
    4,784/9,872 = 9,872/x
  3. Step 3: Cross multiply
    4,784x = 9,872 × 9,872
  4. Step 4: Simplify right side
    4,784x = 97,456,384
  5. Step 5: Solve for x
    x = 97,456,384/4,784
  6. Step 6: Final answer
    x = 20,371.32

Related Problems

Find third proportional to 2,392 and 4,936
Half scale
Find third proportional to 9,568 and 19,744
Double scale
Find third proportional to 4,786 and 9,876
Similar ratio
Find third proportional to 7,176 and 14,808
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.