Home / 11,915.22-17,873.82-4,519.68

Finding the Fourth Proportional to 11,915.22, 17,873.82 and 4,519.68

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Solution

The fourth proportional to 11,915.22, 17,873.82 and 4,519.68 is: 6,779.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,915.22 : 17,873.82 = 4,519.68 : x
  2. Step 2: Convert to fraction form
    11,915.22/17,873.82 = 4,519.68/x
  3. Step 3: Cross multiply
    11,915.22x = 17,873.82 × 4,519.68
  4. Step 4: Simplify right side
    11,915.22x = 80,783,946.78
  5. Step 5: Solve for x
    x = 80,783,946.78/11,915.22
  6. Step 6: Final answer
    x = 6,779.90

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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.