Home / 11,277.36-16,919.28-3,486.78

Finding the Fourth Proportional to 11,277.36, 16,919.28 and 3,486.78

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Solution

The fourth proportional to 11,277.36, 16,919.28 and 3,486.78 is: 5,231.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,277.36 : 16,919.28 = 3,486.78 : x
  2. Step 2: Convert to fraction form
    11,277.36/16,919.28 = 3,486.78/x
  3. Step 3: Cross multiply
    11,277.36x = 16,919.28 × 3,486.78
  4. Step 4: Simplify right side
    11,277.36x = 58,993,807.12
  5. Step 5: Solve for x
    x = 58,993,807.12/11,277.36
  6. Step 6: Final answer
    x = 5,231.17

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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.