Home / 14,105.33-19,469.64-8,140.89

Finding the Fourth Proportional to 14,105.33, 19,469.64 and 8,140.89

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Solution

The fourth proportional to 14,105.33, 19,469.64 and 8,140.89 is: 11,236.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,105.33 : 19,469.64 = 8,140.89 : x
  2. Step 2: Convert to fraction form
    14,105.33/19,469.64 = 8,140.89/x
  3. Step 3: Cross multiply
    14,105.33x = 19,469.64 × 8,140.89
  4. Step 4: Simplify right side
    14,105.33x = 158,500,197.58
  5. Step 5: Solve for x
    x = 158,500,197.58/14,105.33
  6. Step 6: Final answer
    x = 11,236.90

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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.