Home / 11,278.32-16,918.61-3,881.80

Finding the Fourth Proportional to 11,278.32, 16,918.61 and 3,881.80

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Solution

The fourth proportional to 11,278.32, 16,918.61 and 3,881.80 is: 5,823.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,278.32 : 16,918.61 = 3,881.80 : x
  2. Step 2: Convert to fraction form
    11,278.32/16,918.61 = 3,881.80/x
  3. Step 3: Cross multiply
    11,278.32x = 16,918.61 × 3,881.80
  4. Step 4: Simplify right side
    11,278.32x = 65,674,660.30
  5. Step 5: Solve for x
    x = 65,674,660.30/11,278.32
  6. Step 6: Final answer
    x = 5,823.09

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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.