Home / 18,651.12-27,972.61-6,168.19

Finding the Fourth Proportional to 18,651.12, 27,972.61 and 6,168.19

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Solution

The fourth proportional to 18,651.12, 27,972.61 and 6,168.19 is: 9,250.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,651.12 : 27,972.61 = 6,168.19 : x
  2. Step 2: Convert to fraction form
    18,651.12/27,972.61 = 6,168.19/x
  3. Step 3: Cross multiply
    18,651.12x = 27,972.61 × 6,168.19
  4. Step 4: Simplify right side
    18,651.12x = 172,540,373.28
  5. Step 5: Solve for x
    x = 172,540,373.28/18,651.12
  6. Step 6: Final answer
    x = 9,250.94

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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.