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Finding the Fourth Proportional to 14,454.48, 19,940.04 and 9,982.80

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Solution

The fourth proportional to 14,454.48, 19,940.04 and 9,982.80 is: 13,771.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,454.48 : 19,940.04 = 9,982.80 : x
  2. Step 2: Convert to fraction form
    14,454.48/19,940.04 = 9,982.80/x
  3. Step 3: Cross multiply
    14,454.48x = 19,940.04 × 9,982.80
  4. Step 4: Simplify right side
    14,454.48x = 199,057,431.31
  5. Step 5: Solve for x
    x = 199,057,431.31/14,454.48
  6. Step 6: Final answer
    x = 13,771.33

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Similar ratio
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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.