Home / 7,909.70-11,863.53-2,066.76

Finding the Fourth Proportional to 7,909.70, 11,863.53 and 2,066.76

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Solution

The fourth proportional to 7,909.70, 11,863.53 and 2,066.76 is: 3,099.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,909.70 : 11,863.53 = 2,066.76 : x
  2. Step 2: Convert to fraction form
    7,909.70/11,863.53 = 2,066.76/x
  3. Step 3: Cross multiply
    7,909.70x = 11,863.53 × 2,066.76
  4. Step 4: Simplify right side
    7,909.70x = 24,519,069.26
  5. Step 5: Solve for x
    x = 24,519,069.26/7,909.70
  6. Step 6: Final answer
    x = 3,099.88

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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.