Home / 18,120.12-27,174.96-4,972.92

Finding the Fourth Proportional to 18,120.12, 27,174.96 and 4,972.92

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Solution

The fourth proportional to 18,120.12, 27,174.96 and 4,972.92 is: 7,457.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,120.12 : 27,174.96 = 4,972.92 : x
  2. Step 2: Convert to fraction form
    18,120.12/27,174.96 = 4,972.92/x
  3. Step 3: Cross multiply
    18,120.12x = 27,174.96 × 4,972.92
  4. Step 4: Simplify right side
    18,120.12x = 135,138,902.08
  5. Step 5: Solve for x
    x = 135,138,902.08/18,120.12
  6. Step 6: Final answer
    x = 7,457.95

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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.