Home / 18,005.48-27,022.66-8,145.62

Finding the Fourth Proportional to 18,005.48, 27,022.66 and 8,145.62

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Solution

The fourth proportional to 18,005.48, 27,022.66 and 8,145.62 is: 12,224.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,005.48 : 27,022.66 = 8,145.62 : x
  2. Step 2: Convert to fraction form
    18,005.48/27,022.66 = 8,145.62/x
  3. Step 3: Cross multiply
    18,005.48x = 27,022.66 × 8,145.62
  4. Step 4: Simplify right side
    18,005.48x = 220,116,319.75
  5. Step 5: Solve for x
    x = 220,116,319.75/18,005.48
  6. Step 6: Final answer
    x = 12,224.96

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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.