Home / 18,271.87-27,391.60-8,906.65

Finding the Fourth Proportional to 18,271.87, 27,391.60 and 8,906.65

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Solution

The fourth proportional to 18,271.87, 27,391.60 and 8,906.65 is: 13,352.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,271.87 : 27,391.60 = 8,906.65 : x
  2. Step 2: Convert to fraction form
    18,271.87/27,391.60 = 8,906.65/x
  3. Step 3: Cross multiply
    18,271.87x = 27,391.60 × 8,906.65
  4. Step 4: Simplify right side
    18,271.87x = 243,967,394.14
  5. Step 5: Solve for x
    x = 243,967,394.14/18,271.87
  6. Step 6: Final answer
    x = 13,352.08

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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.