Home / 7,849.86-11,780.73-3,957.54

Finding the Fourth Proportional to 7,849.86, 11,780.73 and 3,957.54

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Solution

The fourth proportional to 7,849.86, 11,780.73 and 3,957.54 is: 5,939.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,849.86 : 11,780.73 = 3,957.54 : x
  2. Step 2: Convert to fraction form
    7,849.86/11,780.73 = 3,957.54/x
  3. Step 3: Cross multiply
    7,849.86x = 11,780.73 × 3,957.54
  4. Step 4: Simplify right side
    7,849.86x = 46,622,710.20
  5. Step 5: Solve for x
    x = 46,622,710.20/7,849.86
  6. Step 6: Final answer
    x = 5,939.30

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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.