Home / 18,286.72-27,431.04-5,807.74

Finding the Fourth Proportional to 18,286.72, 27,431.04 and 5,807.74

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Solution

The fourth proportional to 18,286.72, 27,431.04 and 5,807.74 is: 8,711.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,286.72 : 27,431.04 = 5,807.74 : x
  2. Step 2: Convert to fraction form
    18,286.72/27,431.04 = 5,807.74/x
  3. Step 3: Cross multiply
    18,286.72x = 27,431.04 × 5,807.74
  4. Step 4: Simplify right side
    18,286.72x = 159,312,348.25
  5. Step 5: Solve for x
    x = 159,312,348.25/18,286.72
  6. Step 6: Final answer
    x = 8,711.91

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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.