Home / 14,939.57-20,615.82-8,223.89

Finding the Fourth Proportional to 14,939.57, 20,615.82 and 8,223.89

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Solution

The fourth proportional to 14,939.57, 20,615.82 and 8,223.89 is: 11,348.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,939.57 : 20,615.82 = 8,223.89 : x
  2. Step 2: Convert to fraction form
    14,939.57/20,615.82 = 8,223.89/x
  3. Step 3: Cross multiply
    14,939.57x = 20,615.82 × 8,223.89
  4. Step 4: Simplify right side
    14,939.57x = 169,542,235.94
  5. Step 5: Solve for x
    x = 169,542,235.94/14,939.57
  6. Step 6: Final answer
    x = 11,348.54

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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.