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Finding the Fourth Proportional to 18,234.56, 27,351.72 and 5,087

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Solution

The fourth proportional to 18,234.56, 27,351.72 and 5,087 is: 7,630.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,234.56 : 27,351.72 = 5,087 : x
  2. Step 2: Convert to fraction form
    18,234.56/27,351.72 = 5,087/x
  3. Step 3: Cross multiply
    18,234.56x = 27,351.72 × 5,087
  4. Step 4: Simplify right side
    18,234.56x = 139,138,199.64
  5. Step 5: Solve for x
    x = 139,138,199.64/18,234.56
  6. Step 6: Final answer
    x = 7,630.47

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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.