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Finding the Fourth Proportional to 18,207.95, 27,313.97 and 5,729.76

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Solution

The fourth proportional to 18,207.95, 27,313.97 and 5,729.76 is: 8,595.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,207.95 : 27,313.97 = 5,729.76 : x
  2. Step 2: Convert to fraction form
    18,207.95/27,313.97 = 5,729.76/x
  3. Step 3: Cross multiply
    18,207.95x = 27,313.97 × 5,729.76
  4. Step 4: Simplify right side
    18,207.95x = 156,502,464.10
  5. Step 5: Solve for x
    x = 156,502,464.10/18,207.95
  6. Step 6: Final answer
    x = 8,595.28

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.