Home / 14,249.92-21,379.76-7,676.76

Finding the Fourth Proportional to 14,249.92, 21,379.76 and 7,676.76

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Solution

The fourth proportional to 14,249.92, 21,379.76 and 7,676.76 is: 11,517.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,249.92 : 21,379.76 = 7,676.76 : x
  2. Step 2: Convert to fraction form
    14,249.92/21,379.76 = 7,676.76/x
  3. Step 3: Cross multiply
    14,249.92x = 21,379.76 × 7,676.76
  4. Step 4: Simplify right side
    14,249.92x = 164,127,286.38
  5. Step 5: Solve for x
    x = 164,127,286.38/14,249.92
  6. Step 6: Final answer
    x = 11,517.77

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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.