Home / 11,872.28-16,379.52-7,624.28

Finding the Fourth Proportional to 11,872.28, 16,379.52 and 7,624.28

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Solution

The fourth proportional to 11,872.28, 16,379.52 and 7,624.28 is: 10,518.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,872.28 : 16,379.52 = 7,624.28 : x
  2. Step 2: Convert to fraction form
    11,872.28/16,379.52 = 7,624.28/x
  3. Step 3: Cross multiply
    11,872.28x = 16,379.52 × 7,624.28
  4. Step 4: Simplify right side
    11,872.28x = 124,882,046.75
  5. Step 5: Solve for x
    x = 124,882,046.75/11,872.28
  6. Step 6: Final answer
    x = 10,518.79

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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.