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Finding the Fourth Proportional to 12,625, 18,939.94 and 5,699.50

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Solution

The fourth proportional to 12,625, 18,939.94 and 5,699.50 is: 8,550.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,625 : 18,939.94 = 5,699.50 : x
  2. Step 2: Convert to fraction form
    12,625/18,939.94 = 5,699.50/x
  3. Step 3: Cross multiply
    12,625x = 18,939.94 × 5,699.50
  4. Step 4: Simplify right side
    12,625x = 107,948,188.03
  5. Step 5: Solve for x
    x = 107,948,188.03/12,625
  6. Step 6: Final answer
    x = 8,550.35

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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.