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Finding the Fourth Proportional to 18,329, 27,451.96 and 11,665.52

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Solution

The fourth proportional to 18,329, 27,451.96 and 11,665.52 is: 17,471.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,329 : 27,451.96 = 11,665.52 : x
  2. Step 2: Convert to fraction form
    18,329/27,451.96 = 11,665.52/x
  3. Step 3: Cross multiply
    18,329x = 27,451.96 × 11,665.52
  4. Step 4: Simplify right side
    18,329x = 320,241,388.42
  5. Step 5: Solve for x
    x = 320,241,388.42/18,329
  6. Step 6: Final answer
    x = 17,471.84

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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.