Home / 14,584.94-20,129.12-8,212.76

Finding the Fourth Proportional to 14,584.94, 20,129.12 and 8,212.76

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Solution

The fourth proportional to 14,584.94, 20,129.12 and 8,212.76 is: 11,334.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,584.94 : 20,129.12 = 8,212.76 : x
  2. Step 2: Convert to fraction form
    14,584.94/20,129.12 = 8,212.76/x
  3. Step 3: Cross multiply
    14,584.94x = 20,129.12 × 8,212.76
  4. Step 4: Simplify right side
    14,584.94x = 165,315,631.57
  5. Step 5: Solve for x
    x = 165,315,631.57/14,584.94
  6. Step 6: Final answer
    x = 11,334.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.