Home / 11,811.62-16,299.63-6,506.42

Finding the Fourth Proportional to 11,811.62, 16,299.63 and 6,506.42

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Solution

The fourth proportional to 11,811.62, 16,299.63 and 6,506.42 is: 8,978.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,811.62 : 16,299.63 = 6,506.42 : x
  2. Step 2: Convert to fraction form
    11,811.62/16,299.63 = 6,506.42/x
  3. Step 3: Cross multiply
    11,811.62x = 16,299.63 × 6,506.42
  4. Step 4: Simplify right side
    11,811.62x = 106,052,238.62
  5. Step 5: Solve for x
    x = 106,052,238.62/11,811.62
  6. Step 6: Final answer
    x = 8,978.64

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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.