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Finding the Fourth Proportional to 13,296.61, 18,349.08 and 7,328.30

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Solution

The fourth proportional to 13,296.61, 18,349.08 and 7,328.30 is: 10,112.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,296.61 : 18,349.08 = 7,328.30 : x
  2. Step 2: Convert to fraction form
    13,296.61/18,349.08 = 7,328.30/x
  3. Step 3: Cross multiply
    13,296.61x = 18,349.08 × 7,328.30
  4. Step 4: Simplify right side
    13,296.61x = 134,467,562.96
  5. Step 5: Solve for x
    x = 134,467,562.96/13,296.61
  6. Step 6: Final answer
    x = 10,112.92

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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.