Home / 18,399.16-27,579.57-8,530.30

Finding the Fourth Proportional to 18,399.16, 27,579.57 and 8,530.30

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Solution

The fourth proportional to 18,399.16, 27,579.57 and 8,530.30 is: 12,786.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,399.16 : 27,579.57 = 8,530.30 : x
  2. Step 2: Convert to fraction form
    18,399.16/27,579.57 = 8,530.30/x
  3. Step 3: Cross multiply
    18,399.16x = 27,579.57 × 8,530.30
  4. Step 4: Simplify right side
    18,399.16x = 235,262,005.97
  5. Step 5: Solve for x
    x = 235,262,005.97/18,399.16
  6. Step 6: Final answer
    x = 12,786.56

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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.