Home / 11,791.68-16,271.46-6,486.72

Finding the Fourth Proportional to 11,791.68, 16,271.46 and 6,486.72

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Solution

The fourth proportional to 11,791.68, 16,271.46 and 6,486.72 is: 8,951.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,791.68 : 16,271.46 = 6,486.72 : x
  2. Step 2: Convert to fraction form
    11,791.68/16,271.46 = 6,486.72/x
  3. Step 3: Cross multiply
    11,791.68x = 16,271.46 × 6,486.72
  4. Step 4: Simplify right side
    11,791.68x = 105,548,405.01
  5. Step 5: Solve for x
    x = 105,548,405.01/11,791.68
  6. Step 6: Final answer
    x = 8,951.09

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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.