Home / 13,507.44-20,224.82-8,815.80

Finding the Fourth Proportional to 13,507.44, 20,224.82 and 8,815.80

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Solution

The fourth proportional to 13,507.44, 20,224.82 and 8,815.80 is: 13,199.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,507.44 : 20,224.82 = 8,815.80 : x
  2. Step 2: Convert to fraction form
    13,507.44/20,224.82 = 8,815.80/x
  3. Step 3: Cross multiply
    13,507.44x = 20,224.82 × 8,815.80
  4. Step 4: Simplify right side
    13,507.44x = 178,297,968.16
  5. Step 5: Solve for x
    x = 178,297,968.16/13,507.44
  6. Step 6: Final answer
    x = 13,199.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.