Home / 12,704.16-19,055.60-3,939.92

Finding the Fourth Proportional to 12,704.16, 19,055.60 and 3,939.92

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Solution

The fourth proportional to 12,704.16, 19,055.60 and 3,939.92 is: 5,909.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,704.16 : 19,055.60 = 3,939.92 : x
  2. Step 2: Convert to fraction form
    12,704.16/19,055.60 = 3,939.92/x
  3. Step 3: Cross multiply
    12,704.16x = 19,055.60 × 3,939.92
  4. Step 4: Simplify right side
    12,704.16x = 75,077,539.55
  5. Step 5: Solve for x
    x = 75,077,539.55/12,704.16
  6. Step 6: Final answer
    x = 5,909.68

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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.