Home / 7,968.72-11,935.80-5,039.76

Finding the Fourth Proportional to 7,968.72, 11,935.80 and 5,039.76

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Solution

The fourth proportional to 7,968.72, 11,935.80 and 5,039.76 is: 7,548.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,968.72 : 11,935.80 = 5,039.76 : x
  2. Step 2: Convert to fraction form
    7,968.72/11,935.80 = 5,039.76/x
  3. Step 3: Cross multiply
    7,968.72x = 11,935.80 × 5,039.76
  4. Step 4: Simplify right side
    7,968.72x = 60,153,567.41
  5. Step 5: Solve for x
    x = 60,153,567.41/7,968.72
  6. Step 6: Final answer
    x = 7,548.71

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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.