Home / 8,146.05-11,231.69-6,884.88

Finding the Fourth Proportional to 8,146.05, 11,231.69 and 6,884.88

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Solution

The fourth proportional to 8,146.05, 11,231.69 and 6,884.88 is: 9,492.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,146.05 : 11,231.69 = 6,884.88 : x
  2. Step 2: Convert to fraction form
    8,146.05/11,231.69 = 6,884.88/x
  3. Step 3: Cross multiply
    8,146.05x = 11,231.69 × 6,884.88
  4. Step 4: Simplify right side
    8,146.05x = 77,328,837.85
  5. Step 5: Solve for x
    x = 77,328,837.85/8,146.05
  6. Step 6: Final answer
    x = 9,492.80

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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.