Home / 13,540.60-20,310.90-5,748.40

Finding the Fourth Proportional to 13,540.60, 20,310.90 and 5,748.40

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Solution

The fourth proportional to 13,540.60, 20,310.90 and 5,748.40 is: 8,622.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,540.60 : 20,310.90 = 5,748.40 : x
  2. Step 2: Convert to fraction form
    13,540.60/20,310.90 = 5,748.40/x
  3. Step 3: Cross multiply
    13,540.60x = 20,310.90 × 5,748.40
  4. Step 4: Simplify right side
    13,540.60x = 116,755,177.56
  5. Step 5: Solve for x
    x = 116,755,177.56/13,540.60
  6. Step 6: Final answer
    x = 8,622.60

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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.