Home / 13,513.96-20,270.34-4,153.60

Finding the Fourth Proportional to 13,513.96, 20,270.34 and 4,153.60

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Solution

The fourth proportional to 13,513.96, 20,270.34 and 4,153.60 is: 6,230.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,513.96 : 20,270.34 = 4,153.60 : x
  2. Step 2: Convert to fraction form
    13,513.96/20,270.34 = 4,153.60/x
  3. Step 3: Cross multiply
    13,513.96x = 20,270.34 × 4,153.60
  4. Step 4: Simplify right side
    13,513.96x = 84,194,884.22
  5. Step 5: Solve for x
    x = 84,194,884.22/13,513.96
  6. Step 6: Final answer
    x = 6,230.22

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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.