Home / 13,340.62-18,410.43-7,372.68

Finding the Fourth Proportional to 13,340.62, 18,410.43 and 7,372.68

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Solution

The fourth proportional to 13,340.62, 18,410.43 and 7,372.68 is: 10,174.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,340.62 : 18,410.43 = 7,372.68 : x
  2. Step 2: Convert to fraction form
    13,340.62/18,410.43 = 7,372.68/x
  3. Step 3: Cross multiply
    13,340.62x = 18,410.43 × 7,372.68
  4. Step 4: Simplify right side
    13,340.62x = 135,734,198.70
  5. Step 5: Solve for x
    x = 135,734,198.70/13,340.62
  6. Step 6: Final answer
    x = 10,174.50

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1.5x scale

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.