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Finding the Fourth Proportional to 18,807.73, 28,213.08 and 6,327.65

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Solution

The fourth proportional to 18,807.73, 28,213.08 and 6,327.65 is: 9,491.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,807.73 : 28,213.08 = 6,327.65 : x
  2. Step 2: Convert to fraction form
    18,807.73/28,213.08 = 6,327.65/x
  3. Step 3: Cross multiply
    18,807.73x = 28,213.08 × 6,327.65
  4. Step 4: Simplify right side
    18,807.73x = 178,522,542.47
  5. Step 5: Solve for x
    x = 178,522,542.47/18,807.73
  6. Step 6: Final answer
    x = 9,491.98

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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.