Home / 18,018.24-27,019.26-8,165.40

Finding the Fourth Proportional to 18,018.24, 27,019.26 and 8,165.40

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Solution

The fourth proportional to 18,018.24, 27,019.26 and 8,165.40 is: 12,244.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,018.24 : 27,019.26 = 8,165.40 : x
  2. Step 2: Convert to fraction form
    18,018.24/27,019.26 = 8,165.40/x
  3. Step 3: Cross multiply
    18,018.24x = 27,019.26 × 8,165.40
  4. Step 4: Simplify right side
    18,018.24x = 220,623,065.60
  5. Step 5: Solve for x
    x = 220,623,065.60/18,018.24
  6. Step 6: Final answer
    x = 12,244.43

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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.