Home / 8,912.85-13,369.26-2,339.61

Finding the Fourth Proportional to 8,912.85, 13,369.26 and 2,339.61

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Solution

The fourth proportional to 8,912.85, 13,369.26 and 2,339.61 is: 3,509.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,912.85 : 13,369.26 = 2,339.61 : x
  2. Step 2: Convert to fraction form
    8,912.85/13,369.26 = 2,339.61/x
  3. Step 3: Cross multiply
    8,912.85x = 13,369.26 × 2,339.61
  4. Step 4: Simplify right side
    8,912.85x = 31,278,854.39
  5. Step 5: Solve for x
    x = 31,278,854.39/8,912.85
  6. Step 6: Final answer
    x = 3,509.41

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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.