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Finding the Fourth Proportional to 17,857.79, 26,786.41 and 4,349.09

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Solution

The fourth proportional to 17,857.79, 26,786.41 and 4,349.09 is: 6,523.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,857.79 : 26,786.41 = 4,349.09 : x
  2. Step 2: Convert to fraction form
    17,857.79/26,786.41 = 4,349.09/x
  3. Step 3: Cross multiply
    17,857.79x = 26,786.41 × 4,349.09
  4. Step 4: Simplify right side
    17,857.79x = 116,496,530.59
  5. Step 5: Solve for x
    x = 116,496,530.59/17,857.79
  6. Step 6: Final answer
    x = 6,523.57

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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.