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Finding the Fourth Proportional to 8,336.82, 12,507.12 and 2,790.48

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Solution

The fourth proportional to 8,336.82, 12,507.12 and 2,790.48 is: 4,186.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,336.82 : 12,507.12 = 2,790.48 : x
  2. Step 2: Convert to fraction form
    8,336.82/12,507.12 = 2,790.48/x
  3. Step 3: Cross multiply
    8,336.82x = 12,507.12 × 2,790.48
  4. Step 4: Simplify right side
    8,336.82x = 34,900,868.22
  5. Step 5: Solve for x
    x = 34,900,868.22/8,336.82
  6. Step 6: Final answer
    x = 4,186.35

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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.