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Finding the Fourth Proportional to 16,661.40, 22,992.09 and 9,107.67

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Solution

The fourth proportional to 16,661.40, 22,992.09 and 9,107.67 is: 12,568.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,661.40 : 22,992.09 = 9,107.67 : x
  2. Step 2: Convert to fraction form
    16,661.40/22,992.09 = 9,107.67/x
  3. Step 3: Cross multiply
    16,661.40x = 22,992.09 × 9,107.67
  4. Step 4: Simplify right side
    16,661.40x = 209,404,368.33
  5. Step 5: Solve for x
    x = 209,404,368.33/16,661.40
  6. Step 6: Final answer
    x = 12,568.23

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Similar ratio
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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.