Home / 12,318.12-16,961.22-11,327.40

Finding the Fourth Proportional to 12,318.12, 16,961.22 and 11,327.40

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Solution

The fourth proportional to 12,318.12, 16,961.22 and 11,327.40 is: 15,597.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,318.12 : 16,961.22 = 11,327.40 : x
  2. Step 2: Convert to fraction form
    12,318.12/16,961.22 = 11,327.40/x
  3. Step 3: Cross multiply
    12,318.12x = 16,961.22 × 11,327.40
  4. Step 4: Simplify right side
    12,318.12x = 192,126,523.43
  5. Step 5: Solve for x
    x = 192,126,523.43/12,318.12
  6. Step 6: Final answer
    x = 15,597.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.