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Finding the Fourth Proportional to 16,991.43, 25,502.71 and 9,102.85

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Solution

The fourth proportional to 16,991.43, 25,502.71 and 9,102.85 is: 13,662.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,991.43 : 25,502.71 = 9,102.85 : x
  2. Step 2: Convert to fraction form
    16,991.43/25,502.71 = 9,102.85/x
  3. Step 3: Cross multiply
    16,991.43x = 25,502.71 × 9,102.85
  4. Step 4: Simplify right side
    16,991.43x = 232,147,343.72
  5. Step 5: Solve for x
    x = 232,147,343.72/16,991.43
  6. Step 6: Final answer
    x = 13,662.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.