Home / 12,789.70-19,171.77-4,463.26

Finding the Fourth Proportional to 12,789.70, 19,171.77 and 4,463.26

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Solution

The fourth proportional to 12,789.70, 19,171.77 and 4,463.26 is: 6,690.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,789.70 : 19,171.77 = 4,463.26 : x
  2. Step 2: Convert to fraction form
    12,789.70/19,171.77 = 4,463.26/x
  3. Step 3: Cross multiply
    12,789.70x = 19,171.77 × 4,463.26
  4. Step 4: Simplify right side
    12,789.70x = 85,568,594.17
  5. Step 5: Solve for x
    x = 85,568,594.17/12,789.70
  6. Step 6: Final answer
    x = 6,690.43

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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.