Home / 18,255.48-27,379.10-8,385.27

Finding the Fourth Proportional to 18,255.48, 27,379.10 and 8,385.27

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Solution

The fourth proportional to 18,255.48, 27,379.10 and 8,385.27 is: 12,576.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,255.48 : 27,379.10 = 8,385.27 : x
  2. Step 2: Convert to fraction form
    18,255.48/27,379.10 = 8,385.27/x
  3. Step 3: Cross multiply
    18,255.48x = 27,379.10 × 8,385.27
  4. Step 4: Simplify right side
    18,255.48x = 229,581,103.93
  5. Step 5: Solve for x
    x = 229,581,103.93/18,255.48
  6. Step 6: Final answer
    x = 12,576.01

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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.