Home / 18,108.80-27,141.28-8,234.52

Finding the Fourth Proportional to 18,108.80, 27,141.28 and 8,234.52

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Solution

The fourth proportional to 18,108.80, 27,141.28 and 8,234.52 is: 12,341.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,108.80 : 27,141.28 = 8,234.52 : x
  2. Step 2: Convert to fraction form
    18,108.80/27,141.28 = 8,234.52/x
  3. Step 3: Cross multiply
    18,108.80x = 27,141.28 × 8,234.52
  4. Step 4: Simplify right side
    18,108.80x = 223,495,412.99
  5. Step 5: Solve for x
    x = 223,495,412.99/18,108.80
  6. Step 6: Final answer
    x = 12,341.81

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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.