Home / 18,271.62-27,391.23-8,906.40

Finding the Fourth Proportional to 18,271.62, 27,391.23 and 8,906.40

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Solution

The fourth proportional to 18,271.62, 27,391.23 and 8,906.40 is: 13,351.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,271.62 : 27,391.23 = 8,906.40 : x
  2. Step 2: Convert to fraction form
    18,271.62/27,391.23 = 8,906.40/x
  3. Step 3: Cross multiply
    18,271.62x = 27,391.23 × 8,906.40
  4. Step 4: Simplify right side
    18,271.62x = 243,957,250.87
  5. Step 5: Solve for x
    x = 243,957,250.87/18,271.62
  6. Step 6: Final answer
    x = 13,351.70

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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.