Home / 19,837.72-29,758.12-6,690.09

Finding the Fourth Proportional to 19,837.72, 29,758.12 and 6,690.09

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Solution

The fourth proportional to 19,837.72, 29,758.12 and 6,690.09 is: 10,035.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,837.72 : 29,758.12 = 6,690.09 : x
  2. Step 2: Convert to fraction form
    19,837.72/29,758.12 = 6,690.09/x
  3. Step 3: Cross multiply
    19,837.72x = 29,758.12 × 6,690.09
  4. Step 4: Simplify right side
    19,837.72x = 199,084,624.12
  5. Step 5: Solve for x
    x = 199,084,624.12/19,837.72
  6. Step 6: Final answer
    x = 10,035.66

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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.