Home / 11,913.76-17,877.36-11,819.68

Finding the Fourth Proportional to 11,913.76, 17,877.36 and 11,819.68

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Solution

The fourth proportional to 11,913.76, 17,877.36 and 11,819.68 is: 17,736.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,913.76 : 17,877.36 = 11,819.68 : x
  2. Step 2: Convert to fraction form
    11,913.76/17,877.36 = 11,819.68/x
  3. Step 3: Cross multiply
    11,913.76x = 17,877.36 × 11,819.68
  4. Step 4: Simplify right side
    11,913.76x = 211,304,674.44
  5. Step 5: Solve for x
    x = 211,304,674.44/11,913.76
  6. Step 6: Final answer
    x = 17,736.19

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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.