Home / 19,864.12-29,786.10-7,383.64

Finding the Fourth Proportional to 19,864.12, 29,786.10 and 7,383.64

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Solution

The fourth proportional to 19,864.12, 29,786.10 and 7,383.64 is: 11,071.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,864.12 : 29,786.10 = 7,383.64 : x
  2. Step 2: Convert to fraction form
    19,864.12/29,786.10 = 7,383.64/x
  3. Step 3: Cross multiply
    19,864.12x = 29,786.10 × 7,383.64
  4. Step 4: Simplify right side
    19,864.12x = 219,929,839.40
  5. Step 5: Solve for x
    x = 219,929,839.40/19,864.12
  6. Step 6: Final answer
    x = 11,071.71

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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.