Home / 12,845.52-19,287.72-11,394

Finding the Fourth Proportional to 12,845.52, 19,287.72 and 11,394

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Solution

The fourth proportional to 12,845.52, 19,287.72 and 11,394 is: 17,108.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,845.52 : 19,287.72 = 11,394 : x
  2. Step 2: Convert to fraction form
    12,845.52/19,287.72 = 11,394/x
  3. Step 3: Cross multiply
    12,845.52x = 19,287.72 × 11,394
  4. Step 4: Simplify right side
    12,845.52x = 219,764,281.68
  5. Step 5: Solve for x
    x = 219,764,281.68/12,845.52
  6. Step 6: Final answer
    x = 17,108.24

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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.