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Finding the Fourth Proportional to 18,479.50, 27,719.49 and 6,167.50

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Solution

The fourth proportional to 18,479.50, 27,719.49 and 6,167.50 is: 9,251.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,479.50 : 27,719.49 = 6,167.50 : x
  2. Step 2: Convert to fraction form
    18,479.50/27,719.49 = 6,167.50/x
  3. Step 3: Cross multiply
    18,479.50x = 27,719.49 × 6,167.50
  4. Step 4: Simplify right side
    18,479.50x = 170,959,954.58
  5. Step 5: Solve for x
    x = 170,959,954.58/18,479.50
  6. Step 6: Final answer
    x = 9,251.33

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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.