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Finding the Fourth Proportional to 7,988.69, 11,983.04 and 3,059.74

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Solution

The fourth proportional to 7,988.69, 11,983.04 and 3,059.74 is: 4,589.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,988.69 : 11,983.04 = 3,059.74 : x
  2. Step 2: Convert to fraction form
    7,988.69/11,983.04 = 3,059.74/x
  3. Step 3: Cross multiply
    7,988.69x = 11,983.04 × 3,059.74
  4. Step 4: Simplify right side
    7,988.69x = 36,664,997.96
  5. Step 5: Solve for x
    x = 36,664,997.96/7,988.69
  6. Step 6: Final answer
    x = 4,589.61

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Similar ratio
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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.