Home / 9,149.73-13,728.21-3,885.87

Finding the Fourth Proportional to 9,149.73, 13,728.21 and 3,885.87

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Solution

The fourth proportional to 9,149.73, 13,728.21 and 3,885.87 is: 5,830.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,149.73 : 13,728.21 = 3,885.87 : x
  2. Step 2: Convert to fraction form
    9,149.73/13,728.21 = 3,885.87/x
  3. Step 3: Cross multiply
    9,149.73x = 13,728.21 × 3,885.87
  4. Step 4: Simplify right side
    9,149.73x = 53,346,039.39
  5. Step 5: Solve for x
    x = 53,346,039.39/9,149.73
  6. Step 6: Final answer
    x = 5,830.34

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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.