Home / 11,699.87-16,145.61-6,394.64

Finding the Fourth Proportional to 11,699.87, 16,145.61 and 6,394.64

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Solution

The fourth proportional to 11,699.87, 16,145.61 and 6,394.64 is: 8,824.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,699.87 : 16,145.61 = 6,394.64 : x
  2. Step 2: Convert to fraction form
    11,699.87/16,145.61 = 6,394.64/x
  3. Step 3: Cross multiply
    11,699.87x = 16,145.61 × 6,394.64
  4. Step 4: Simplify right side
    11,699.87x = 103,245,363.53
  5. Step 5: Solve for x
    x = 103,245,363.53/11,699.87
  6. Step 6: Final answer
    x = 8,824.49

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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.