Home / 7,857.48-11,784.39-3,472.54

Finding the Fourth Proportional to 7,857.48, 11,784.39 and 3,472.54

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Solution

The fourth proportional to 7,857.48, 11,784.39 and 3,472.54 is: 5,208.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,857.48 : 11,784.39 = 3,472.54 : x
  2. Step 2: Convert to fraction form
    7,857.48/11,784.39 = 3,472.54/x
  3. Step 3: Cross multiply
    7,857.48x = 11,784.39 × 3,472.54
  4. Step 4: Simplify right side
    7,857.48x = 40,921,765.65
  5. Step 5: Solve for x
    x = 40,921,765.65/7,857.48
  6. Step 6: Final answer
    x = 5,208.00

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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.