Home / 11,305.82-16,956.75-2,985.90

Finding the Fourth Proportional to 11,305.82, 16,956.75 and 2,985.90

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Solution

The fourth proportional to 11,305.82, 16,956.75 and 2,985.90 is: 4,478.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,305.82 : 16,956.75 = 2,985.90 : x
  2. Step 2: Convert to fraction form
    11,305.82/16,956.75 = 2,985.90/x
  3. Step 3: Cross multiply
    11,305.82x = 16,956.75 × 2,985.90
  4. Step 4: Simplify right side
    11,305.82x = 50,631,159.83
  5. Step 5: Solve for x
    x = 50,631,159.83/11,305.82
  6. Step 6: Final answer
    x = 4,478.33

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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.