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Finding the Fourth Proportional to 11,144.84, 16,687.02 and 7,239.56

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Solution

The fourth proportional to 11,144.84, 16,687.02 and 7,239.56 is: 10,839.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,144.84 : 16,687.02 = 7,239.56 : x
  2. Step 2: Convert to fraction form
    11,144.84/16,687.02 = 7,239.56/x
  3. Step 3: Cross multiply
    11,144.84x = 16,687.02 × 7,239.56
  4. Step 4: Simplify right side
    11,144.84x = 120,806,682.51
  5. Step 5: Solve for x
    x = 120,806,682.51/11,144.84
  6. Step 6: Final answer
    x = 10,839.70

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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.