Home / 11,278.33-16,919.12-3,487.75

Finding the Fourth Proportional to 11,278.33, 16,919.12 and 3,487.75

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Solution

The fourth proportional to 11,278.33, 16,919.12 and 3,487.75 is: 5,232.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,278.33 : 16,919.12 = 3,487.75 : x
  2. Step 2: Convert to fraction form
    11,278.33/16,919.12 = 3,487.75/x
  3. Step 3: Cross multiply
    11,278.33x = 16,919.12 × 3,487.75
  4. Step 4: Simplify right side
    11,278.33x = 59,009,660.78
  5. Step 5: Solve for x
    x = 59,009,660.78/11,278.33
  6. Step 6: Final answer
    x = 5,232.13

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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.