Home / 19,296.72-28,939.10-6,813.87

Finding the Fourth Proportional to 19,296.72, 28,939.10 and 6,813.87

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Solution

The fourth proportional to 19,296.72, 28,939.10 and 6,813.87 is: 10,218.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,296.72 : 28,939.10 = 6,813.87 : x
  2. Step 2: Convert to fraction form
    19,296.72/28,939.10 = 6,813.87/x
  3. Step 3: Cross multiply
    19,296.72x = 28,939.10 × 6,813.87
  4. Step 4: Simplify right side
    19,296.72x = 197,187,231.25
  5. Step 5: Solve for x
    x = 197,187,231.25/19,296.72
  6. Step 6: Final answer
    x = 10,218.69

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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.