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Finding the Fourth Proportional to 18,992.16, 28,499.04 and 10,226.88

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Solution

The fourth proportional to 18,992.16, 28,499.04 and 10,226.88 is: 15,346.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,992.16 : 28,499.04 = 10,226.88 : x
  2. Step 2: Convert to fraction form
    18,992.16/28,499.04 = 10,226.88/x
  3. Step 3: Cross multiply
    18,992.16x = 28,499.04 × 10,226.88
  4. Step 4: Simplify right side
    18,992.16x = 291,456,262.20
  5. Step 5: Solve for x
    x = 291,456,262.20/18,992.16
  6. Step 6: Final answer
    x = 15,346.14

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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.