Home / 12,083.88-16,675.69-6,778.69

Finding the Fourth Proportional to 12,083.88, 16,675.69 and 6,778.69

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Solution

The fourth proportional to 12,083.88, 16,675.69 and 6,778.69 is: 9,354.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,083.88 : 16,675.69 = 6,778.69 : x
  2. Step 2: Convert to fraction form
    12,083.88/16,675.69 = 6,778.69/x
  3. Step 3: Cross multiply
    12,083.88x = 16,675.69 × 6,778.69
  4. Step 4: Simplify right side
    12,083.88x = 113,039,287.12
  5. Step 5: Solve for x
    x = 113,039,287.12/12,083.88
  6. Step 6: Final answer
    x = 9,354.55

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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.