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Finding the Fourth Proportional to 18,884.41, 28,326.71 and 5,736.89

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Solution

The fourth proportional to 18,884.41, 28,326.71 and 5,736.89 is: 8,605.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,884.41 : 28,326.71 = 5,736.89 : x
  2. Step 2: Convert to fraction form
    18,884.41/28,326.71 = 5,736.89/x
  3. Step 3: Cross multiply
    18,884.41x = 28,326.71 × 5,736.89
  4. Step 4: Simplify right side
    18,884.41x = 162,507,304.49
  5. Step 5: Solve for x
    x = 162,507,304.49/18,884.41
  6. Step 6: Final answer
    x = 8,605.37

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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.