Home / 11,318.91-16,979.30-3,527.72

Finding the Fourth Proportional to 11,318.91, 16,979.30 and 3,527.72

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Solution

The fourth proportional to 11,318.91, 16,979.30 and 3,527.72 is: 5,291.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,318.91 : 16,979.30 = 3,527.72 : x
  2. Step 2: Convert to fraction form
    11,318.91/16,979.30 = 3,527.72/x
  3. Step 3: Cross multiply
    11,318.91x = 16,979.30 × 3,527.72
  4. Step 4: Simplify right side
    11,318.91x = 59,898,180.64
  5. Step 5: Solve for x
    x = 59,898,180.64/11,318.91
  6. Step 6: Final answer
    x = 5,291.87

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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.