Home / 7,986.52-11,970.78-3,545.02

Finding the Fourth Proportional to 7,986.52, 11,970.78 and 3,545.02

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Solution

The fourth proportional to 7,986.52, 11,970.78 and 3,545.02 is: 5,313.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,986.52 : 11,970.78 = 3,545.02 : x
  2. Step 2: Convert to fraction form
    7,986.52/11,970.78 = 3,545.02/x
  3. Step 3: Cross multiply
    7,986.52x = 11,970.78 × 3,545.02
  4. Step 4: Simplify right side
    7,986.52x = 42,436,654.52
  5. Step 5: Solve for x
    x = 42,436,654.52/7,986.52
  6. Step 6: Final answer
    x = 5,313.54

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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.