Home / 11,385.84-15,714-6,672

Finding the Fourth Proportional to 11,385.84, 15,714 and 6,672

Calculator

Solution

The fourth proportional to 11,385.84, 15,714 and 6,672 is: 9,208.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,385.84 : 15,714 = 6,672 : x
  2. Step 2: Convert to fraction form
    11,385.84/15,714 = 6,672/x
  3. Step 3: Cross multiply
    11,385.84x = 15,714 × 6,672
  4. Step 4: Simplify right side
    11,385.84x = 104,843,808
  5. Step 5: Solve for x
    x = 104,843,808/11,385.84
  6. Step 6: Final answer
    x = 9,208.26

Related Problems

Find fourth proportional to 5,692.92, 7,857 and 3,336
Half scale
Find fourth proportional to 22,771.68, 31,428 and 13,344
Double scale
Find fourth proportional to 11,386.84, 15,715.38 and 6,673
Similar ratio
Find fourth proportional to 17,078.76, 23,571 and 10,008
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.