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Finding the Fourth Proportional to 17,958.54, 26,937.09 and 6,864.78

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Solution

The fourth proportional to 17,958.54, 26,937.09 and 6,864.78 is: 10,296.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,958.54 : 26,937.09 = 6,864.78 : x
  2. Step 2: Convert to fraction form
    17,958.54/26,937.09 = 6,864.78/x
  3. Step 3: Cross multiply
    17,958.54x = 26,937.09 × 6,864.78
  4. Step 4: Simplify right side
    17,958.54x = 184,917,196.69
  5. Step 5: Solve for x
    x = 184,917,196.69/17,958.54
  6. Step 6: Final answer
    x = 10,296.89

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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.