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Finding the Fourth Proportional to 18,165.30, 27,247.98 and 5,018.70

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Solution

The fourth proportional to 18,165.30, 27,247.98 and 5,018.70 is: 7,528.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,165.30 : 27,247.98 = 5,018.70 : x
  2. Step 2: Convert to fraction form
    18,165.30/27,247.98 = 5,018.70/x
  3. Step 3: Cross multiply
    18,165.30x = 27,247.98 × 5,018.70
  4. Step 4: Simplify right side
    18,165.30x = 136,749,437.23
  5. Step 5: Solve for x
    x = 136,749,437.23/18,165.30
  6. Step 6: Final answer
    x = 7,528.06

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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.