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Finding the Fourth Proportional to 11,395.84, 17,093.76 and 3,187.84

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Solution

The fourth proportional to 11,395.84, 17,093.76 and 3,187.84 is: 4,781.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,395.84 : 17,093.76 = 3,187.84 : x
  2. Step 2: Convert to fraction form
    11,395.84/17,093.76 = 3,187.84/x
  3. Step 3: Cross multiply
    11,395.84x = 17,093.76 × 3,187.84
  4. Step 4: Simplify right side
    11,395.84x = 54,492,171.88
  5. Step 5: Solve for x
    x = 54,492,171.88/11,395.84
  6. Step 6: Final answer
    x = 4,781.76

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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.