Home / 13,201.55-18,213.59-7,532.21

Finding the Fourth Proportional to 13,201.55, 18,213.59 and 7,532.21

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Solution

The fourth proportional to 13,201.55, 18,213.59 and 7,532.21 is: 10,391.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,201.55 : 18,213.59 = 7,532.21 : x
  2. Step 2: Convert to fraction form
    13,201.55/18,213.59 = 7,532.21/x
  3. Step 3: Cross multiply
    13,201.55x = 18,213.59 × 7,532.21
  4. Step 4: Simplify right side
    13,201.55x = 137,188,584.73
  5. Step 5: Solve for x
    x = 137,188,584.73/13,201.55
  6. Step 6: Final answer
    x = 10,391.85

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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.