Home / 11,712.39-17,569.52-3,814.75

Finding the Fourth Proportional to 11,712.39, 17,569.52 and 3,814.75

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Solution

The fourth proportional to 11,712.39, 17,569.52 and 3,814.75 is: 5,722.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,712.39 : 17,569.52 = 3,814.75 : x
  2. Step 2: Convert to fraction form
    11,712.39/17,569.52 = 3,814.75/x
  3. Step 3: Cross multiply
    11,712.39x = 17,569.52 × 3,814.75
  4. Step 4: Simplify right side
    11,712.39x = 67,023,326.42
  5. Step 5: Solve for x
    x = 67,023,326.42/11,712.39
  6. Step 6: Final answer
    x = 5,722.43

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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.