Home / 13,236.72-18,265.38-7,571.58

Finding the Fourth Proportional to 13,236.72, 18,265.38 and 7,571.58

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Solution

The fourth proportional to 13,236.72, 18,265.38 and 7,571.58 is: 10,448.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,236.72 : 18,265.38 = 7,571.58 : x
  2. Step 2: Convert to fraction form
    13,236.72/18,265.38 = 7,571.58/x
  3. Step 3: Cross multiply
    13,236.72x = 18,265.38 × 7,571.58
  4. Step 4: Simplify right side
    13,236.72x = 138,297,785.90
  5. Step 5: Solve for x
    x = 138,297,785.90/13,236.72
  6. Step 6: Final answer
    x = 10,448.04

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Half scale
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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.