Home / 13,520.08-20,276.99-3,660.12

Finding the Fourth Proportional to 13,520.08, 20,276.99 and 3,660.12

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Solution

The fourth proportional to 13,520.08, 20,276.99 and 3,660.12 is: 5,489.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,520.08 : 20,276.99 = 3,660.12 : x
  2. Step 2: Convert to fraction form
    13,520.08/20,276.99 = 3,660.12/x
  3. Step 3: Cross multiply
    13,520.08x = 20,276.99 × 3,660.12
  4. Step 4: Simplify right side
    13,520.08x = 74,216,216.64
  5. Step 5: Solve for x
    x = 74,216,216.64/13,520.08
  6. Step 6: Final answer
    x = 5,489.33

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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.