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Finding the Fourth Proportional to 18,308.64, 27,474.22 and 8,448.65

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Solution

The fourth proportional to 18,308.64, 27,474.22 and 8,448.65 is: 12,678.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,308.64 : 27,474.22 = 8,448.65 : x
  2. Step 2: Convert to fraction form
    18,308.64/27,474.22 = 8,448.65/x
  3. Step 3: Cross multiply
    18,308.64x = 27,474.22 × 8,448.65
  4. Step 4: Simplify right side
    18,308.64x = 232,120,045.02
  5. Step 5: Solve for x
    x = 232,120,045.02/18,308.64
  6. Step 6: Final answer
    x = 12,678.17

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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.