Home / 7,986.95-11,981.25-3,060.75

Finding the Fourth Proportional to 7,986.95, 11,981.25 and 3,060.75

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Solution

The fourth proportional to 7,986.95, 11,981.25 and 3,060.75 is: 4,591.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,986.95 : 11,981.25 = 3,060.75 : x
  2. Step 2: Convert to fraction form
    7,986.95/11,981.25 = 3,060.75/x
  3. Step 3: Cross multiply
    7,986.95x = 11,981.25 × 3,060.75
  4. Step 4: Simplify right side
    7,986.95x = 36,671,610.94
  5. Step 5: Solve for x
    x = 36,671,610.94/7,986.95
  6. Step 6: Final answer
    x = 4,591.44

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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.