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Finding the Fourth Proportional to 18,892.86, 28,300.41 and 11,097.42

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Solution

The fourth proportional to 18,892.86, 28,300.41 and 11,097.42 is: 16,623.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,892.86 : 28,300.41 = 11,097.42 : x
  2. Step 2: Convert to fraction form
    18,892.86/28,300.41 = 11,097.42/x
  3. Step 3: Cross multiply
    18,892.86x = 28,300.41 × 11,097.42
  4. Step 4: Simplify right side
    18,892.86x = 314,061,535.94
  5. Step 5: Solve for x
    x = 314,061,535.94/18,892.86
  6. Step 6: Final answer
    x = 16,623.29

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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.