Home / 11,518.50-17,277.75-3,310.50

Finding the Fourth Proportional to 11,518.50, 17,277.75 and 3,310.50

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Solution

The fourth proportional to 11,518.50, 17,277.75 and 3,310.50 is: 4,965.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,518.50 : 17,277.75 = 3,310.50 : x
  2. Step 2: Convert to fraction form
    11,518.50/17,277.75 = 3,310.50/x
  3. Step 3: Cross multiply
    11,518.50x = 17,277.75 × 3,310.50
  4. Step 4: Simplify right side
    11,518.50x = 57,197,991.38
  5. Step 5: Solve for x
    x = 57,197,991.38/11,518.50
  6. Step 6: Final answer
    x = 4,965.75

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Double scale
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1.5x scale

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.