Home / 11,791.92-16,272.81-6,486.70

Finding the Fourth Proportional to 11,791.92, 16,272.81 and 6,486.70

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Solution

The fourth proportional to 11,791.92, 16,272.81 and 6,486.70 is: 8,951.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,791.92 : 16,272.81 = 6,486.70 : x
  2. Step 2: Convert to fraction form
    11,791.92/16,272.81 = 6,486.70/x
  3. Step 3: Cross multiply
    11,791.92x = 16,272.81 × 6,486.70
  4. Step 4: Simplify right side
    11,791.92x = 105,556,836.63
  5. Step 5: Solve for x
    x = 105,556,836.63/11,791.92
  6. Step 6: Final answer
    x = 8,951.62

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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.