Home / 7,909.11-11,861.91-3,523.77

Finding the Fourth Proportional to 7,909.11, 11,861.91 and 3,523.77

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Solution

The fourth proportional to 7,909.11, 11,861.91 and 3,523.77 is: 5,284.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,909.11 : 11,861.91 = 3,523.77 : x
  2. Step 2: Convert to fraction form
    7,909.11/11,861.91 = 3,523.77/x
  3. Step 3: Cross multiply
    7,909.11x = 11,861.91 × 3,523.77
  4. Step 4: Simplify right side
    7,909.11x = 41,798,642.60
  5. Step 5: Solve for x
    x = 41,798,642.60/7,909.11
  6. Step 6: Final answer
    x = 5,284.87

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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.