Home / 14,286.11-21,421.94-8,364.78

Finding the Fourth Proportional to 14,286.11, 21,421.94 and 8,364.78

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Solution

The fourth proportional to 14,286.11, 21,421.94 and 8,364.78 is: 12,542.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,286.11 : 21,421.94 = 8,364.78 : x
  2. Step 2: Convert to fraction form
    14,286.11/21,421.94 = 8,364.78/x
  3. Step 3: Cross multiply
    14,286.11x = 21,421.94 × 8,364.78
  4. Step 4: Simplify right side
    14,286.11x = 179,189,773.45
  5. Step 5: Solve for x
    x = 179,189,773.45/14,286.11
  6. Step 6: Final answer
    x = 12,542.94

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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.