Home / 9,629.72-13,288.85-5,380.85

Finding the Fourth Proportional to 9,629.72, 13,288.85 and 5,380.85

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Solution

The fourth proportional to 9,629.72, 13,288.85 and 5,380.85 is: 7,425.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,629.72 : 13,288.85 = 5,380.85 : x
  2. Step 2: Convert to fraction form
    9,629.72/13,288.85 = 5,380.85/x
  3. Step 3: Cross multiply
    9,629.72x = 13,288.85 × 5,380.85
  4. Step 4: Simplify right side
    9,629.72x = 71,505,215.17
  5. Step 5: Solve for x
    x = 71,505,215.17/9,629.72
  6. Step 6: Final answer
    x = 7,425.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.