Home / 19,788.12-27,309.96-11,834.64

Finding the Fourth Proportional to 19,788.12, 27,309.96 and 11,834.64

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Solution

The fourth proportional to 19,788.12, 27,309.96 and 11,834.64 is: 16,333.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,788.12 : 27,309.96 = 11,834.64 : x
  2. Step 2: Convert to fraction form
    19,788.12/27,309.96 = 11,834.64/x
  3. Step 3: Cross multiply
    19,788.12x = 27,309.96 × 11,834.64
  4. Step 4: Simplify right side
    19,788.12x = 323,203,545.01
  5. Step 5: Solve for x
    x = 323,203,545.01/19,788.12
  6. Step 6: Final answer
    x = 16,333.21

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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.