Home / 13,635.40-20,453.10-4,276.20

Finding the Fourth Proportional to 13,635.40, 20,453.10 and 4,276.20

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Solution

The fourth proportional to 13,635.40, 20,453.10 and 4,276.20 is: 6,414.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,635.40 : 20,453.10 = 4,276.20 : x
  2. Step 2: Convert to fraction form
    13,635.40/20,453.10 = 4,276.20/x
  3. Step 3: Cross multiply
    13,635.40x = 20,453.10 × 4,276.20
  4. Step 4: Simplify right side
    13,635.40x = 87,461,546.22
  5. Step 5: Solve for x
    x = 87,461,546.22/13,635.40
  6. Step 6: Final answer
    x = 6,414.30

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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.