Home / 12,806.88-19,181.28-6,873.42

Finding the Fourth Proportional to 12,806.88, 19,181.28 and 6,873.42

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Solution

The fourth proportional to 12,806.88, 19,181.28 and 6,873.42 is: 10,294.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,806.88 : 19,181.28 = 6,873.42 : x
  2. Step 2: Convert to fraction form
    12,806.88/19,181.28 = 6,873.42/x
  3. Step 3: Cross multiply
    12,806.88x = 19,181.28 × 6,873.42
  4. Step 4: Simplify right side
    12,806.88x = 131,840,993.58
  5. Step 5: Solve for x
    x = 131,840,993.58/12,806.88
  6. Step 6: Final answer
    x = 10,294.54

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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.