Home / 11,811.96-16,299.84-6,505.74

Finding the Fourth Proportional to 11,811.96, 16,299.84 and 6,505.74

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Solution

The fourth proportional to 11,811.96, 16,299.84 and 6,505.74 is: 8,977.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,811.96 : 16,299.84 = 6,505.74 : x
  2. Step 2: Convert to fraction form
    11,811.96/16,299.84 = 6,505.74/x
  3. Step 3: Cross multiply
    11,811.96x = 16,299.84 × 6,505.74
  4. Step 4: Simplify right side
    11,811.96x = 106,042,521.08
  5. Step 5: Solve for x
    x = 106,042,521.08/11,811.96
  6. Step 6: Final answer
    x = 8,977.56

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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.