Home / 13,455.68-20,183.53-6,434.04

Finding the Fourth Proportional to 13,455.68, 20,183.53 and 6,434.04

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Solution

The fourth proportional to 13,455.68, 20,183.53 and 6,434.04 is: 9,651.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,455.68 : 20,183.53 = 6,434.04 : x
  2. Step 2: Convert to fraction form
    13,455.68/20,183.53 = 6,434.04/x
  3. Step 3: Cross multiply
    13,455.68x = 20,183.53 × 6,434.04
  4. Step 4: Simplify right side
    13,455.68x = 129,861,538.44
  5. Step 5: Solve for x
    x = 129,861,538.44/13,455.68
  6. Step 6: Final answer
    x = 9,651.06

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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.