Home / 12,285.82-16,942.52-7,801.66

Finding the Fourth Proportional to 12,285.82, 16,942.52 and 7,801.66

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Solution

The fourth proportional to 12,285.82, 16,942.52 and 7,801.66 is: 10,758.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,285.82 : 16,942.52 = 7,801.66 : x
  2. Step 2: Convert to fraction form
    12,285.82/16,942.52 = 7,801.66/x
  3. Step 3: Cross multiply
    12,285.82x = 16,942.52 × 7,801.66
  4. Step 4: Simplify right side
    12,285.82x = 132,179,780.58
  5. Step 5: Solve for x
    x = 132,179,780.58/12,285.82
  6. Step 6: Final answer
    x = 10,758.73

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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.