Home / 18,405.91-27,589.69-8,537.05

Finding the Fourth Proportional to 18,405.91, 27,589.69 and 8,537.05

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Solution

The fourth proportional to 18,405.91, 27,589.69 and 8,537.05 is: 12,796.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,405.91 : 27,589.69 = 8,537.05 : x
  2. Step 2: Convert to fraction form
    18,405.91/27,589.69 = 8,537.05/x
  3. Step 3: Cross multiply
    18,405.91x = 27,589.69 × 8,537.05
  4. Step 4: Simplify right side
    18,405.91x = 235,534,563.01
  5. Step 5: Solve for x
    x = 235,534,563.01/18,405.91
  6. Step 6: Final answer
    x = 12,796.68

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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.