Home / 14,786.94-20,400.72-8,735.89

Finding the Fourth Proportional to 14,786.94, 20,400.72 and 8,735.89

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Solution

The fourth proportional to 14,786.94, 20,400.72 and 8,735.89 is: 12,052.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,786.94 : 20,400.72 = 8,735.89 : x
  2. Step 2: Convert to fraction form
    14,786.94/20,400.72 = 8,735.89/x
  3. Step 3: Cross multiply
    14,786.94x = 20,400.72 × 8,735.89
  4. Step 4: Simplify right side
    14,786.94x = 178,218,433.07
  5. Step 5: Solve for x
    x = 178,218,433.07/14,786.94
  6. Step 6: Final answer
    x = 12,052.42

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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.