Home / 11,815.69-16,306.80-8,826.33

Finding the Fourth Proportional to 11,815.69, 16,306.80 and 8,826.33

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Solution

The fourth proportional to 11,815.69, 16,306.80 and 8,826.33 is: 12,181.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,815.69 : 16,306.80 = 8,826.33 : x
  2. Step 2: Convert to fraction form
    11,815.69/16,306.80 = 8,826.33/x
  3. Step 3: Cross multiply
    11,815.69x = 16,306.80 × 8,826.33
  4. Step 4: Simplify right side
    11,815.69x = 143,929,175.98
  5. Step 5: Solve for x
    x = 143,929,175.98/11,815.69
  6. Step 6: Final answer
    x = 12,181.19

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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.