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Finding the Fourth Proportional to 12,504.80, 18,759.64 and 3,739.52

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Solution

The fourth proportional to 12,504.80, 18,759.64 and 3,739.52 is: 5,610.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,504.80 : 18,759.64 = 3,739.52 : x
  2. Step 2: Convert to fraction form
    12,504.80/18,759.64 = 3,739.52/x
  3. Step 3: Cross multiply
    12,504.80x = 18,759.64 × 3,739.52
  4. Step 4: Simplify right side
    12,504.80x = 70,152,048.97
  5. Step 5: Solve for x
    x = 70,152,048.97/12,504.80
  6. Step 6: Final answer
    x = 5,610.01

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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.