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Finding the Fourth Proportional to 18,199.71, 27,297.71 and 5,719.83

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Solution

The fourth proportional to 18,199.71, 27,297.71 and 5,719.83 is: 8,579.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,199.71 : 27,297.71 = 5,719.83 : x
  2. Step 2: Convert to fraction form
    18,199.71/27,297.71 = 5,719.83/x
  3. Step 3: Cross multiply
    18,199.71x = 27,297.71 × 5,719.83
  4. Step 4: Simplify right side
    18,199.71x = 156,138,231.99
  5. Step 5: Solve for x
    x = 156,138,231.99/18,199.71
  6. Step 6: Final answer
    x = 8,579.16

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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.