Home / 11,216.70-16,827.30-3,319.20

Finding the Fourth Proportional to 11,216.70, 16,827.30 and 3,319.20

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Solution

The fourth proportional to 11,216.70, 16,827.30 and 3,319.20 is: 4,979.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,216.70 : 16,827.30 = 3,319.20 : x
  2. Step 2: Convert to fraction form
    11,216.70/16,827.30 = 3,319.20/x
  3. Step 3: Cross multiply
    11,216.70x = 16,827.30 × 3,319.20
  4. Step 4: Simplify right side
    11,216.70x = 55,853,174.16
  5. Step 5: Solve for x
    x = 55,853,174.16/11,216.70
  6. Step 6: Final answer
    x = 4,979.47

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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.