Home / 18,275.91-27,405.21-8,412.27

Finding the Fourth Proportional to 18,275.91, 27,405.21 and 8,412.27

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Solution

The fourth proportional to 18,275.91, 27,405.21 and 8,412.27 is: 12,614.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,275.91 : 27,405.21 = 8,412.27 : x
  2. Step 2: Convert to fraction form
    18,275.91/27,405.21 = 8,412.27/x
  3. Step 3: Cross multiply
    18,275.91x = 27,405.21 × 8,412.27
  4. Step 4: Simplify right side
    18,275.91x = 230,540,025.93
  5. Step 5: Solve for x
    x = 230,540,025.93/18,275.91
  6. Step 6: Final answer
    x = 12,614.42

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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.