Home / 12,711.82-19,165.25-11,854.31

Finding the Fourth Proportional to 12,711.82, 19,165.25 and 11,854.31

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Solution

The fourth proportional to 12,711.82, 19,165.25 and 11,854.31 is: 17,872.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,711.82 : 19,165.25 = 11,854.31 : x
  2. Step 2: Convert to fraction form
    12,711.82/19,165.25 = 11,854.31/x
  3. Step 3: Cross multiply
    12,711.82x = 19,165.25 × 11,854.31
  4. Step 4: Simplify right side
    12,711.82x = 227,190,814.73
  5. Step 5: Solve for x
    x = 227,190,814.73/12,711.82
  6. Step 6: Final answer
    x = 17,872.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.