Home / 11,983.20-17,933.76-9,877.92

Finding the Fourth Proportional to 11,983.20, 17,933.76 and 9,877.92

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Solution

The fourth proportional to 11,983.20, 17,933.76 and 9,877.92 is: 14,783.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,983.20 : 17,933.76 = 9,877.92 : x
  2. Step 2: Convert to fraction form
    11,983.20/17,933.76 = 9,877.92/x
  3. Step 3: Cross multiply
    11,983.20x = 17,933.76 × 9,877.92
  4. Step 4: Simplify right side
    11,983.20x = 177,148,246.58
  5. Step 5: Solve for x
    x = 177,148,246.58/11,983.20
  6. Step 6: Final answer
    x = 14,783.05

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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.