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Finding the Fourth Proportional to 8,628.63, 11,907.50 and 4,902.63

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Solution

The fourth proportional to 8,628.63, 11,907.50 and 4,902.63 is: 6,765.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,628.63 : 11,907.50 = 4,902.63 : x
  2. Step 2: Convert to fraction form
    8,628.63/11,907.50 = 4,902.63/x
  3. Step 3: Cross multiply
    8,628.63x = 11,907.50 × 4,902.63
  4. Step 4: Simplify right side
    8,628.63x = 58,378,066.73
  5. Step 5: Solve for x
    x = 58,378,066.73/8,628.63
  6. Step 6: Final answer
    x = 6,765.62

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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.