Home / 12,191.58-18,294.66-8,327.88

Finding the Fourth Proportional to 12,191.58, 18,294.66 and 8,327.88

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Solution

The fourth proportional to 12,191.58, 18,294.66 and 8,327.88 is: 12,496.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,191.58 : 18,294.66 = 8,327.88 : x
  2. Step 2: Convert to fraction form
    12,191.58/18,294.66 = 8,327.88/x
  3. Step 3: Cross multiply
    12,191.58x = 18,294.66 × 8,327.88
  4. Step 4: Simplify right side
    12,191.58x = 152,355,733.12
  5. Step 5: Solve for x
    x = 152,355,733.12/12,191.58
  6. Step 6: Final answer
    x = 12,496.80

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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.