Home / 11,172.56-15,408.24-8,513.60

Finding the Fourth Proportional to 11,172.56, 15,408.24 and 8,513.60

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Solution

The fourth proportional to 11,172.56, 15,408.24 and 8,513.60 is: 11,741.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,172.56 : 15,408.24 = 8,513.60 : x
  2. Step 2: Convert to fraction form
    11,172.56/15,408.24 = 8,513.60/x
  3. Step 3: Cross multiply
    11,172.56x = 15,408.24 × 8,513.60
  4. Step 4: Simplify right side
    11,172.56x = 131,179,592.06
  5. Step 5: Solve for x
    x = 131,179,592.06/11,172.56
  6. Step 6: Final answer
    x = 11,741.23

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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.