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Finding the Fourth Proportional to 8,018.42, 12,028.76 and 2,472.21

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Solution

The fourth proportional to 8,018.42, 12,028.76 and 2,472.21 is: 3,708.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,018.42 : 12,028.76 = 2,472.21 : x
  2. Step 2: Convert to fraction form
    8,018.42/12,028.76 = 2,472.21/x
  3. Step 3: Cross multiply
    8,018.42x = 12,028.76 × 2,472.21
  4. Step 4: Simplify right side
    8,018.42x = 29,737,608.40
  5. Step 5: Solve for x
    x = 29,737,608.40/8,018.42
  6. Step 6: Final answer
    x = 3,708.66

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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.