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Finding the Fourth Proportional to 18,326.82, 27,494.28 and 6,640.95

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Solution

The fourth proportional to 18,326.82, 27,494.28 and 6,640.95 is: 9,962.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,326.82 : 27,494.28 = 6,640.95 : x
  2. Step 2: Convert to fraction form
    18,326.82/27,494.28 = 6,640.95/x
  3. Step 3: Cross multiply
    18,326.82x = 27,494.28 × 6,640.95
  4. Step 4: Simplify right side
    18,326.82x = 182,588,138.77
  5. Step 5: Solve for x
    x = 182,588,138.77/18,326.82
  6. Step 6: Final answer
    x = 9,962.89

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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.