Home / 18,220.30-27,318.30-8,864.80

Finding the Fourth Proportional to 18,220.30, 27,318.30 and 8,864.80

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Solution

The fourth proportional to 18,220.30, 27,318.30 and 8,864.80 is: 13,291.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,220.30 : 27,318.30 = 8,864.80 : x
  2. Step 2: Convert to fraction form
    18,220.30/27,318.30 = 8,864.80/x
  3. Step 3: Cross multiply
    18,220.30x = 27,318.30 × 8,864.80
  4. Step 4: Simplify right side
    18,220.30x = 242,171,265.84
  5. Step 5: Solve for x
    x = 242,171,265.84/18,220.30
  6. Step 6: Final answer
    x = 13,291.29

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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.