Home / 25,386-38,079-6,918

Finding the Fourth Proportional to 25,386, 38,079 and 6,918

Calculator

Solution

The fourth proportional to 25,386, 38,079 and 6,918 is: 10,377

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,386 : 38,079 = 6,918 : x
  2. Step 2: Convert to fraction form
    25,386/38,079 = 6,918/x
  3. Step 3: Cross multiply
    25,386x = 38,079 × 6,918
  4. Step 4: Simplify right side
    25,386x = 263,430,522
  5. Step 5: Solve for x
    x = 263,430,522/25,386
  6. Step 6: Final answer
    x = 10,377

Related Problems

Find fourth proportional to 12,693, 19,039.50 and 3,459
Half scale
Find fourth proportional to 50,772, 76,158 and 13,836
Double scale
Find fourth proportional to 25,387, 38,080.50 and 6,919
Similar ratio
Find fourth proportional to 38,079, 57,118.50 and 10,377
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.