Home / 13,629.06-20,454.45-9,276.90

Finding the Fourth Proportional to 13,629.06, 20,454.45 and 9,276.90

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Solution

The fourth proportional to 13,629.06, 20,454.45 and 9,276.90 is: 13,922.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,629.06 : 20,454.45 = 9,276.90 : x
  2. Step 2: Convert to fraction form
    13,629.06/20,454.45 = 9,276.90/x
  3. Step 3: Cross multiply
    13,629.06x = 20,454.45 × 9,276.90
  4. Step 4: Simplify right side
    13,629.06x = 189,753,887.21
  5. Step 5: Solve for x
    x = 189,753,887.21/13,629.06
  6. Step 6: Final answer
    x = 13,922.74

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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.