Home / 14,846.20-20,487.75-8,131.77

Finding the Fourth Proportional to 14,846.20, 20,487.75 and 8,131.77

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Solution

The fourth proportional to 14,846.20, 20,487.75 and 8,131.77 is: 11,221.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,846.20 : 20,487.75 = 8,131.77 : x
  2. Step 2: Convert to fraction form
    14,846.20/20,487.75 = 8,131.77/x
  3. Step 3: Cross multiply
    14,846.20x = 20,487.75 × 8,131.77
  4. Step 4: Simplify right side
    14,846.20x = 166,601,594.14
  5. Step 5: Solve for x
    x = 166,601,594.14/14,846.20
  6. Step 6: Final answer
    x = 11,221.83

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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.