Home / 9,103.80-13,629.78-6,321.72

Finding the Fourth Proportional to 9,103.80, 13,629.78 and 6,321.72

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Solution

The fourth proportional to 9,103.80, 13,629.78 and 6,321.72 is: 9,464.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,103.80 : 13,629.78 = 6,321.72 : x
  2. Step 2: Convert to fraction form
    9,103.80/13,629.78 = 6,321.72/x
  3. Step 3: Cross multiply
    9,103.80x = 13,629.78 × 6,321.72
  4. Step 4: Simplify right side
    9,103.80x = 86,163,652.82
  5. Step 5: Solve for x
    x = 86,163,652.82/9,103.80
  6. Step 6: Final answer
    x = 9,464.58

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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.