Home / 13,631.53-20,447.26-3,770.80

Finding the Fourth Proportional to 13,631.53, 20,447.26 and 3,770.80

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Solution

The fourth proportional to 13,631.53, 20,447.26 and 3,770.80 is: 5,656.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,631.53 : 20,447.26 = 3,770.80 : x
  2. Step 2: Convert to fraction form
    13,631.53/20,447.26 = 3,770.80/x
  3. Step 3: Cross multiply
    13,631.53x = 20,447.26 × 3,770.80
  4. Step 4: Simplify right side
    13,631.53x = 77,102,528.01
  5. Step 5: Solve for x
    x = 77,102,528.01/13,631.53
  6. Step 6: Final answer
    x = 5,656.19

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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.