Home / 14,255.39-21,383.96-5,490.33

Finding the Fourth Proportional to 14,255.39, 21,383.96 and 5,490.33

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Solution

The fourth proportional to 14,255.39, 21,383.96 and 5,490.33 is: 8,235.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,255.39 : 21,383.96 = 5,490.33 : x
  2. Step 2: Convert to fraction form
    14,255.39/21,383.96 = 5,490.33/x
  3. Step 3: Cross multiply
    14,255.39x = 21,383.96 × 5,490.33
  4. Step 4: Simplify right side
    14,255.39x = 117,404,997.11
  5. Step 5: Solve for x
    x = 117,404,997.11/14,255.39
  6. Step 6: Final answer
    x = 8,235.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.