Home / 18,286.89-27,431.27-5,807.88

Finding the Fourth Proportional to 18,286.89, 27,431.27 and 5,807.88

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Solution

The fourth proportional to 18,286.89, 27,431.27 and 5,807.88 is: 8,712.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,286.89 : 27,431.27 = 5,807.88 : x
  2. Step 2: Convert to fraction form
    18,286.89/27,431.27 = 5,807.88/x
  3. Step 3: Cross multiply
    18,286.89x = 27,431.27 × 5,807.88
  4. Step 4: Simplify right side
    18,286.89x = 159,317,524.41
  5. Step 5: Solve for x
    x = 159,317,524.41/18,286.89
  6. Step 6: Final answer
    x = 8,712.12

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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.