Home / 8,431.87-11,636.36-4,847.99

Finding the Fourth Proportional to 8,431.87, 11,636.36 and 4,847.99

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Solution

The fourth proportional to 8,431.87, 11,636.36 and 4,847.99 is: 6,690.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,431.87 : 11,636.36 = 4,847.99 : x
  2. Step 2: Convert to fraction form
    8,431.87/11,636.36 = 4,847.99/x
  3. Step 3: Cross multiply
    8,431.87x = 11,636.36 × 4,847.99
  4. Step 4: Simplify right side
    8,431.87x = 56,412,932.68
  5. Step 5: Solve for x
    x = 56,412,932.68/8,431.87
  6. Step 6: Final answer
    x = 6,690.44

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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.