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Finding the Fourth Proportional to 7,896.82, 11,837.02 and 3,214.82

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Solution

The fourth proportional to 7,896.82, 11,837.02 and 3,214.82 is: 4,818.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,896.82 : 11,837.02 = 3,214.82 : x
  2. Step 2: Convert to fraction form
    7,896.82/11,837.02 = 3,214.82/x
  3. Step 3: Cross multiply
    7,896.82x = 11,837.02 × 3,214.82
  4. Step 4: Simplify right side
    7,896.82x = 38,053,888.64
  5. Step 5: Solve for x
    x = 38,053,888.64/7,896.82
  6. Step 6: Final answer
    x = 4,818.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.