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Finding the Fourth Proportional to 11,601.09, 16,016.18 and 8,069.09

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Solution

The fourth proportional to 11,601.09, 16,016.18 and 8,069.09 is: 11,139.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,601.09 : 16,016.18 = 8,069.09 : x
  2. Step 2: Convert to fraction form
    11,601.09/16,016.18 = 8,069.09/x
  3. Step 3: Cross multiply
    11,601.09x = 16,016.18 × 8,069.09
  4. Step 4: Simplify right side
    11,601.09x = 129,235,877.45
  5. Step 5: Solve for x
    x = 129,235,877.45/11,601.09
  6. Step 6: Final answer
    x = 11,139.98

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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.