Home / 6,742-10,113-1,878

Finding the Fourth Proportional to 6,742, 10,113 and 1,878

Calculator

Solution

The fourth proportional to 6,742, 10,113 and 1,878 is: 2,817

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,742 : 10,113 = 1,878 : x
  2. Step 2: Convert to fraction form
    6,742/10,113 = 1,878/x
  3. Step 3: Cross multiply
    6,742x = 10,113 × 1,878
  4. Step 4: Simplify right side
    6,742x = 18,992,214
  5. Step 5: Solve for x
    x = 18,992,214/6,742
  6. Step 6: Final answer
    x = 2,817

Related Problems

Find fourth proportional to 3,371, 5,056.50 and 939
Half scale
Find fourth proportional to 13,484, 20,226 and 3,756
Double scale
Find fourth proportional to 6,743, 10,114.50 and 1,879
Similar ratio
Find fourth proportional to 10,113, 15,169.50 and 2,817
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.