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Finding the Fourth Proportional to 8,385.07, 12,583.07 and 3,190.99

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Solution

The fourth proportional to 8,385.07, 12,583.07 and 3,190.99 is: 4,788.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,385.07 : 12,583.07 = 3,190.99 : x
  2. Step 2: Convert to fraction form
    8,385.07/12,583.07 = 3,190.99/x
  3. Step 3: Cross multiply
    8,385.07x = 12,583.07 × 3,190.99
  4. Step 4: Simplify right side
    8,385.07x = 40,152,450.54
  5. Step 5: Solve for x
    x = 40,152,450.54/8,385.07
  6. Step 6: Final answer
    x = 4,788.56

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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.