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Finding the Fourth Proportional to 8,645.53, 12,947.50 and 4,936.52

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Solution

The fourth proportional to 8,645.53, 12,947.50 and 4,936.52 is: 7,392.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,645.53 : 12,947.50 = 4,936.52 : x
  2. Step 2: Convert to fraction form
    8,645.53/12,947.50 = 4,936.52/x
  3. Step 3: Cross multiply
    8,645.53x = 12,947.50 × 4,936.52
  4. Step 4: Simplify right side
    8,645.53x = 63,915,527.96
  5. Step 5: Solve for x
    x = 63,915,527.96/8,645.53
  6. Step 6: Final answer
    x = 7,392.90

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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.