Home / 12,211.24-16,851.30-6,622.12

Finding the Fourth Proportional to 12,211.24, 16,851.30 and 6,622.12

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Solution

The fourth proportional to 12,211.24, 16,851.30 and 6,622.12 is: 9,138.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,211.24 : 16,851.30 = 6,622.12 : x
  2. Step 2: Convert to fraction form
    12,211.24/16,851.30 = 6,622.12/x
  3. Step 3: Cross multiply
    12,211.24x = 16,851.30 × 6,622.12
  4. Step 4: Simplify right side
    12,211.24x = 111,591,330.76
  5. Step 5: Solve for x
    x = 111,591,330.76/12,211.24
  6. Step 6: Final answer
    x = 9,138.41

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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.