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Finding the Fourth Proportional to 18,665.84, 27,953.98 and 10,744.31

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Solution

The fourth proportional to 18,665.84, 27,953.98 and 10,744.31 is: 16,090.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,665.84 : 27,953.98 = 10,744.31 : x
  2. Step 2: Convert to fraction form
    18,665.84/27,953.98 = 10,744.31/x
  3. Step 3: Cross multiply
    18,665.84x = 27,953.98 × 10,744.31
  4. Step 4: Simplify right side
    18,665.84x = 300,346,269.88
  5. Step 5: Solve for x
    x = 300,346,269.88/18,665.84
  6. Step 6: Final answer
    x = 16,090.69

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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.