Home / 13,375.14-20,020.68-9,190.68

Finding the Fourth Proportional to 13,375.14, 20,020.68 and 9,190.68

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Solution

The fourth proportional to 13,375.14, 20,020.68 and 9,190.68 is: 13,757.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,375.14 : 20,020.68 = 9,190.68 : x
  2. Step 2: Convert to fraction form
    13,375.14/20,020.68 = 9,190.68/x
  3. Step 3: Cross multiply
    13,375.14x = 20,020.68 × 9,190.68
  4. Step 4: Simplify right side
    13,375.14x = 184,003,663.26
  5. Step 5: Solve for x
    x = 184,003,663.26/13,375.14
  6. Step 6: Final answer
    x = 13,757.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.