Home / 18,015.02-27,021.94-8,154.30

Finding the Fourth Proportional to 18,015.02, 27,021.94 and 8,154.30

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Solution

The fourth proportional to 18,015.02, 27,021.94 and 8,154.30 is: 12,231.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,015.02 : 27,021.94 = 8,154.30 : x
  2. Step 2: Convert to fraction form
    18,015.02/27,021.94 = 8,154.30/x
  3. Step 3: Cross multiply
    18,015.02x = 27,021.94 × 8,154.30
  4. Step 4: Simplify right side
    18,015.02x = 220,344,984.96
  5. Step 5: Solve for x
    x = 220,344,984.96/18,015.02
  6. Step 6: Final answer
    x = 12,231.19

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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.