Home / 43,278-64,917-10,446

Finding the Fourth Proportional to 43,278, 64,917 and 10,446

Calculator

Solution

The fourth proportional to 43,278, 64,917 and 10,446 is: 15,669

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,278 : 64,917 = 10,446 : x
  2. Step 2: Convert to fraction form
    43,278/64,917 = 10,446/x
  3. Step 3: Cross multiply
    43,278x = 64,917 × 10,446
  4. Step 4: Simplify right side
    43,278x = 678,122,982
  5. Step 5: Solve for x
    x = 678,122,982/43,278
  6. Step 6: Final answer
    x = 15,669

Related Problems

Find fourth proportional to 21,639, 32,458.50 and 5,223
Half scale
Find fourth proportional to 86,556, 129,834 and 20,892
Double scale
Find fourth proportional to 43,279, 64,918.50 and 10,447
Similar ratio
Find fourth proportional to 64,917, 97,375.50 and 15,669
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.