Home / 8,359.68-12,539.52-2,812

Finding the Fourth Proportional to 8,359.68, 12,539.52 and 2,812

Calculator

Solution

The fourth proportional to 8,359.68, 12,539.52 and 2,812 is: 4,218

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,359.68 : 12,539.52 = 2,812 : x
  2. Step 2: Convert to fraction form
    8,359.68/12,539.52 = 2,812/x
  3. Step 3: Cross multiply
    8,359.68x = 12,539.52 × 2,812
  4. Step 4: Simplify right side
    8,359.68x = 35,261,130.24
  5. Step 5: Solve for x
    x = 35,261,130.24/8,359.68
  6. Step 6: Final answer
    x = 4,218

Related Problems

Find fourth proportional to 4,179.84, 6,269.76 and 1,406
Half scale
Find fourth proportional to 16,719.36, 25,079.04 and 5,624
Double scale
Find fourth proportional to 8,360.68, 12,541.02 and 2,813
Similar ratio
Find fourth proportional to 12,539.52, 18,809.28 and 4,218
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.