Home / 12,191.92-18,266.86-8,234.44

Finding the Fourth Proportional to 12,191.92, 18,266.86 and 8,234.44

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Solution

The fourth proportional to 12,191.92, 18,266.86 and 8,234.44 is: 12,337.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,191.92 : 18,266.86 = 8,234.44 : x
  2. Step 2: Convert to fraction form
    12,191.92/18,266.86 = 8,234.44/x
  3. Step 3: Cross multiply
    12,191.92x = 18,266.86 × 8,234.44
  4. Step 4: Simplify right side
    12,191.92x = 150,417,362.66
  5. Step 5: Solve for x
    x = 150,417,362.66/12,191.92
  6. Step 6: Final answer
    x = 12,337.46

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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.