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Finding the Fourth Proportional to 18,536.86, 27,805.07 and 7,443.35

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Solution

The fourth proportional to 18,536.86, 27,805.07 and 7,443.35 is: 11,164.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,536.86 : 27,805.07 = 7,443.35 : x
  2. Step 2: Convert to fraction form
    18,536.86/27,805.07 = 7,443.35/x
  3. Step 3: Cross multiply
    18,536.86x = 27,805.07 × 7,443.35
  4. Step 4: Simplify right side
    18,536.86x = 206,962,867.78
  5. Step 5: Solve for x
    x = 206,962,867.78/18,536.86
  6. Step 6: Final answer
    x = 11,164.94

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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.