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Finding the Fourth Proportional to 7,995.73, 11,997.93 and 3,318.95

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Solution

The fourth proportional to 7,995.73, 11,997.93 and 3,318.95 is: 4,980.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,995.73 : 11,997.93 = 3,318.95 : x
  2. Step 2: Convert to fraction form
    7,995.73/11,997.93 = 3,318.95/x
  3. Step 3: Cross multiply
    7,995.73x = 11,997.93 × 3,318.95
  4. Step 4: Simplify right side
    7,995.73x = 39,820,510.83
  5. Step 5: Solve for x
    x = 39,820,510.83/7,995.73
  6. Step 6: Final answer
    x = 4,980.22

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1.5x scale

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.