Home / 13,231.11-18,258.86-7,262.88

Finding the Fourth Proportional to 13,231.11, 18,258.86 and 7,262.88

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Solution

The fourth proportional to 13,231.11, 18,258.86 and 7,262.88 is: 10,022.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,231.11 : 18,258.86 = 7,262.88 : x
  2. Step 2: Convert to fraction form
    13,231.11/18,258.86 = 7,262.88/x
  3. Step 3: Cross multiply
    13,231.11x = 18,258.86 × 7,262.88
  4. Step 4: Simplify right side
    13,231.11x = 132,611,872.80
  5. Step 5: Solve for x
    x = 132,611,872.80/13,231.11
  6. Step 6: Final answer
    x = 10,022.73

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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.