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Finding the Fourth Proportional to 12,273.03, 16,919.76 and 8,287.83

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Solution

The fourth proportional to 12,273.03, 16,919.76 and 8,287.83 is: 11,425.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,273.03 : 16,919.76 = 8,287.83 : x
  2. Step 2: Convert to fraction form
    12,273.03/16,919.76 = 8,287.83/x
  3. Step 3: Cross multiply
    12,273.03x = 16,919.76 × 8,287.83
  4. Step 4: Simplify right side
    12,273.03x = 140,228,094.52
  5. Step 5: Solve for x
    x = 140,228,094.52/12,273.03
  6. Step 6: Final answer
    x = 11,425.71

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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.