Home / 13,372.32-18,453.83-7,322.54

Finding the Fourth Proportional to 13,372.32, 18,453.83 and 7,322.54

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Solution

The fourth proportional to 13,372.32, 18,453.83 and 7,322.54 is: 10,105.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,372.32 : 18,453.83 = 7,322.54 : x
  2. Step 2: Convert to fraction form
    13,372.32/18,453.83 = 7,322.54/x
  3. Step 3: Cross multiply
    13,372.32x = 18,453.83 × 7,322.54
  4. Step 4: Simplify right side
    13,372.32x = 135,128,779.45
  5. Step 5: Solve for x
    x = 135,128,779.45/13,372.32
  6. Step 6: Final answer
    x = 10,105.11

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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.