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Finding the Fourth Proportional to 13,310.58, 18,369.54 and 7,646.28

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Solution

The fourth proportional to 13,310.58, 18,369.54 and 7,646.28 is: 10,552.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,310.58 : 18,369.54 = 7,646.28 : x
  2. Step 2: Convert to fraction form
    13,310.58/18,369.54 = 7,646.28/x
  3. Step 3: Cross multiply
    13,310.58x = 18,369.54 × 7,646.28
  4. Step 4: Simplify right side
    13,310.58x = 140,458,646.31
  5. Step 5: Solve for x
    x = 140,458,646.31/13,310.58
  6. Step 6: Final answer
    x = 10,552.41

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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.