Home / 14,128.66-21,192.98-13,194.54

Finding the Fourth Proportional to 14,128.66, 21,192.98 and 13,194.54

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Solution

The fourth proportional to 14,128.66, 21,192.98 and 13,194.54 is: 19,791.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,128.66 : 21,192.98 = 13,194.54 : x
  2. Step 2: Convert to fraction form
    14,128.66/21,192.98 = 13,194.54/x
  3. Step 3: Cross multiply
    14,128.66x = 21,192.98 × 13,194.54
  4. Step 4: Simplify right side
    14,128.66x = 279,631,622.33
  5. Step 5: Solve for x
    x = 279,631,622.33/14,128.66
  6. Step 6: Final answer
    x = 19,791.80

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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.