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Finding the Fourth Proportional to 18,297.57, 27,450.17 and 10,403.72

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Solution

The fourth proportional to 18,297.57, 27,450.17 and 10,403.72 is: 15,607.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,297.57 : 27,450.17 = 10,403.72 : x
  2. Step 2: Convert to fraction form
    18,297.57/27,450.17 = 10,403.72/x
  3. Step 3: Cross multiply
    18,297.57x = 27,450.17 × 10,403.72
  4. Step 4: Simplify right side
    18,297.57x = 285,583,882.63
  5. Step 5: Solve for x
    x = 285,583,882.63/18,297.57
  6. Step 6: Final answer
    x = 15,607.75

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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.