Home / 13,631.74-20,445.18-6,236.44

Finding the Fourth Proportional to 13,631.74, 20,445.18 and 6,236.44

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Solution

The fourth proportional to 13,631.74, 20,445.18 and 6,236.44 is: 9,353.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,631.74 : 20,445.18 = 6,236.44 : x
  2. Step 2: Convert to fraction form
    13,631.74/20,445.18 = 6,236.44/x
  3. Step 3: Cross multiply
    13,631.74x = 20,445.18 × 6,236.44
  4. Step 4: Simplify right side
    13,631.74x = 127,505,138.36
  5. Step 5: Solve for x
    x = 127,505,138.36/13,631.74
  6. Step 6: Final answer
    x = 9,353.55

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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.