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Finding the Fourth Proportional to 13,953.25, 19,255.50 and 7,666.03

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Solution

The fourth proportional to 13,953.25, 19,255.50 and 7,666.03 is: 10,579.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,953.25 : 19,255.50 = 7,666.03 : x
  2. Step 2: Convert to fraction form
    13,953.25/19,255.50 = 7,666.03/x
  3. Step 3: Cross multiply
    13,953.25x = 19,255.50 × 7,666.03
  4. Step 4: Simplify right side
    13,953.25x = 147,613,202.33
  5. Step 5: Solve for x
    x = 147,613,202.33/13,953.25
  6. Step 6: Final answer
    x = 10,579.13

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.