Home / 19,808.72-29,713.32-6,661.04

Finding the Fourth Proportional to 19,808.72, 29,713.32 and 6,661.04

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Solution

The fourth proportional to 19,808.72, 29,713.32 and 6,661.04 is: 9,991.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,808.72 : 29,713.32 = 6,661.04 : x
  2. Step 2: Convert to fraction form
    19,808.72/29,713.32 = 6,661.04/x
  3. Step 3: Cross multiply
    19,808.72x = 29,713.32 × 6,661.04
  4. Step 4: Simplify right side
    19,808.72x = 197,921,613.05
  5. Step 5: Solve for x
    x = 197,921,613.05/19,808.72
  6. Step 6: Final answer
    x = 9,991.64

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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.