Home / 8,188.21-11,299.68-4,651.43

Finding the Fourth Proportional to 8,188.21, 11,299.68 and 4,651.43

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Solution

The fourth proportional to 8,188.21, 11,299.68 and 4,651.43 is: 6,418.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,188.21 : 11,299.68 = 4,651.43 : x
  2. Step 2: Convert to fraction form
    8,188.21/11,299.68 = 4,651.43/x
  3. Step 3: Cross multiply
    8,188.21x = 11,299.68 × 4,651.43
  4. Step 4: Simplify right side
    8,188.21x = 52,559,600.96
  5. Step 5: Solve for x
    x = 52,559,600.96/8,188.21
  6. Step 6: Final answer
    x = 6,418.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.