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Finding the Fourth Proportional to 13,298.16, 18,351.22 and 7,329.68

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Solution

The fourth proportional to 13,298.16, 18,351.22 and 7,329.68 is: 10,114.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,298.16 : 18,351.22 = 7,329.68 : x
  2. Step 2: Convert to fraction form
    13,298.16/18,351.22 = 7,329.68/x
  3. Step 3: Cross multiply
    13,298.16x = 18,351.22 × 7,329.68
  4. Step 4: Simplify right side
    13,298.16x = 134,508,570.21
  5. Step 5: Solve for x
    x = 134,508,570.21/13,298.16
  6. Step 6: Final answer
    x = 10,114.83

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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.