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Finding the Fourth Proportional to 18,133.78, 27,185.91 and 7,034.74

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Solution

The fourth proportional to 18,133.78, 27,185.91 and 7,034.74 is: 10,546.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,133.78 : 27,185.91 = 7,034.74 : x
  2. Step 2: Convert to fraction form
    18,133.78/27,185.91 = 7,034.74/x
  3. Step 3: Cross multiply
    18,133.78x = 27,185.91 × 7,034.74
  4. Step 4: Simplify right side
    18,133.78x = 191,245,808.51
  5. Step 5: Solve for x
    x = 191,245,808.51/18,133.78
  6. Step 6: Final answer
    x = 10,546.38

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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.