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Finding the Fourth Proportional to 13,805.62, 20,662.89 and 9,795.34

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Solution

The fourth proportional to 13,805.62, 20,662.89 and 9,795.34 is: 14,660.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,805.62 : 20,662.89 = 9,795.34 : x
  2. Step 2: Convert to fraction form
    13,805.62/20,662.89 = 9,795.34/x
  3. Step 3: Cross multiply
    13,805.62x = 20,662.89 × 9,795.34
  4. Step 4: Simplify right side
    13,805.62x = 202,400,032.93
  5. Step 5: Solve for x
    x = 202,400,032.93/13,805.62
  6. Step 6: Final answer
    x = 14,660.70

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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.