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Finding the Fourth Proportional to 13,654.30, 18,843.84 and 7,605.49

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Solution

The fourth proportional to 13,654.30, 18,843.84 and 7,605.49 is: 10,496.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,654.30 : 18,843.84 = 7,605.49 : x
  2. Step 2: Convert to fraction form
    13,654.30/18,843.84 = 7,605.49/x
  3. Step 3: Cross multiply
    13,654.30x = 18,843.84 × 7,605.49
  4. Step 4: Simplify right side
    13,654.30x = 143,316,636.68
  5. Step 5: Solve for x
    x = 143,316,636.68/13,654.30
  6. Step 6: Final answer
    x = 10,496.08

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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.