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Finding the Fourth Proportional to 14,015.84, 21,029.97 and 7,440.44

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Solution

The fourth proportional to 14,015.84, 21,029.97 and 7,440.44 is: 11,163.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,015.84 : 21,029.97 = 7,440.44 : x
  2. Step 2: Convert to fraction form
    14,015.84/21,029.97 = 7,440.44/x
  3. Step 3: Cross multiply
    14,015.84x = 21,029.97 × 7,440.44
  4. Step 4: Simplify right side
    14,015.84x = 156,472,229.99
  5. Step 5: Solve for x
    x = 156,472,229.99/14,015.84
  6. Step 6: Final answer
    x = 11,163.96

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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.