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Finding the Fourth Proportional to 11,984.38, 17,950.38 and 9,880.75

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Solution

The fourth proportional to 11,984.38, 17,950.38 and 9,880.75 is: 14,799.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,984.38 : 17,950.38 = 9,880.75 : x
  2. Step 2: Convert to fraction form
    11,984.38/17,950.38 = 9,880.75/x
  3. Step 3: Cross multiply
    11,984.38x = 17,950.38 × 9,880.75
  4. Step 4: Simplify right side
    11,984.38x = 177,363,217.19
  5. Step 5: Solve for x
    x = 177,363,217.19/11,984.38
  6. Step 6: Final answer
    x = 14,799.53

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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.