Home / 8,912.12-13,369.36-3,716.76

Finding the Fourth Proportional to 8,912.12, 13,369.36 and 3,716.76

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Solution

The fourth proportional to 8,912.12, 13,369.36 and 3,716.76 is: 5,575.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,912.12 : 13,369.36 = 3,716.76 : x
  2. Step 2: Convert to fraction form
    8,912.12/13,369.36 = 3,716.76/x
  3. Step 3: Cross multiply
    8,912.12x = 13,369.36 × 3,716.76
  4. Step 4: Simplify right side
    8,912.12x = 49,690,702.47
  5. Step 5: Solve for x
    x = 49,690,702.47/8,912.12
  6. Step 6: Final answer
    x = 5,575.63

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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.