Home / 11,997.62-17,964.12-7,827.28

Finding the Fourth Proportional to 11,997.62, 17,964.12 and 7,827.28

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Solution

The fourth proportional to 11,997.62, 17,964.12 and 7,827.28 is: 11,719.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,997.62 : 17,964.12 = 7,827.28 : x
  2. Step 2: Convert to fraction form
    11,997.62/17,964.12 = 7,827.28/x
  3. Step 3: Cross multiply
    11,997.62x = 17,964.12 × 7,827.28
  4. Step 4: Simplify right side
    11,997.62x = 140,610,197.19
  5. Step 5: Solve for x
    x = 140,610,197.19/11,997.62
  6. Step 6: Final answer
    x = 11,719.84

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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.