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Finding the Fourth Proportional to 13,191, 18,203.58 and 7,602

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Solution

The fourth proportional to 13,191, 18,203.58 and 7,602 is: 10,490.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,191 : 18,203.58 = 7,602 : x
  2. Step 2: Convert to fraction form
    13,191/18,203.58 = 7,602/x
  3. Step 3: Cross multiply
    13,191x = 18,203.58 × 7,602
  4. Step 4: Simplify right side
    13,191x = 138,383,615.16
  5. Step 5: Solve for x
    x = 138,383,615.16/13,191
  6. Step 6: Final answer
    x = 10,490.76

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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.