Home / 13,299.80-18,352.44-7,329.96

Finding the Fourth Proportional to 13,299.80, 18,352.44 and 7,329.96

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Solution

The fourth proportional to 13,299.80, 18,352.44 and 7,329.96 is: 10,114.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,299.80 : 18,352.44 = 7,329.96 : x
  2. Step 2: Convert to fraction form
    13,299.80/18,352.44 = 7,329.96/x
  3. Step 3: Cross multiply
    13,299.80x = 18,352.44 × 7,329.96
  4. Step 4: Simplify right side
    13,299.80x = 134,522,651.10
  5. Step 5: Solve for x
    x = 134,522,651.10/13,299.80
  6. Step 6: Final answer
    x = 10,114.64

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Why These Related Problems?

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