Home / 9,138.27-13,708.84-3,873.30

Finding the Fourth Proportional to 9,138.27, 13,708.84 and 3,873.30

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Solution

The fourth proportional to 9,138.27, 13,708.84 and 3,873.30 is: 5,810.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,138.27 : 13,708.84 = 3,873.30 : x
  2. Step 2: Convert to fraction form
    9,138.27/13,708.84 = 3,873.30/x
  3. Step 3: Cross multiply
    9,138.27x = 13,708.84 × 3,873.30
  4. Step 4: Simplify right side
    9,138.27x = 53,098,449.97
  5. Step 5: Solve for x
    x = 53,098,449.97/9,138.27
  6. Step 6: Final answer
    x = 5,810.56

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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.