Home / 13,319.03-18,380.31-7,350.87

Finding the Fourth Proportional to 13,319.03, 18,380.31 and 7,350.87

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Solution

The fourth proportional to 13,319.03, 18,380.31 and 7,350.87 is: 10,144.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,319.03 : 18,380.31 = 7,350.87 : x
  2. Step 2: Convert to fraction form
    13,319.03/18,380.31 = 7,350.87/x
  3. Step 3: Cross multiply
    13,319.03x = 18,380.31 × 7,350.87
  4. Step 4: Simplify right side
    13,319.03x = 135,111,269.37
  5. Step 5: Solve for x
    x = 135,111,269.37/13,319.03
  6. Step 6: Final answer
    x = 10,144.23

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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.