Home / 13,340.83-18,410.13-7,372.75

Finding the Fourth Proportional to 13,340.83, 18,410.13 and 7,372.75

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Solution

The fourth proportional to 13,340.83, 18,410.13 and 7,372.75 is: 10,174.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,340.83 : 18,410.13 = 7,372.75 : x
  2. Step 2: Convert to fraction form
    13,340.83/18,410.13 = 7,372.75/x
  3. Step 3: Cross multiply
    13,340.83x = 18,410.13 × 7,372.75
  4. Step 4: Simplify right side
    13,340.83x = 135,733,285.96
  5. Step 5: Solve for x
    x = 135,733,285.96/13,340.83
  6. Step 6: Final answer
    x = 10,174.28

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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.