Home / 19,613.54-29,420.30-7,934.96

Finding the Fourth Proportional to 19,613.54, 29,420.30 and 7,934.96

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Solution

The fourth proportional to 19,613.54, 29,420.30 and 7,934.96 is: 11,902.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,613.54 : 29,420.30 = 7,934.96 : x
  2. Step 2: Convert to fraction form
    19,613.54/29,420.30 = 7,934.96/x
  3. Step 3: Cross multiply
    19,613.54x = 29,420.30 × 7,934.96
  4. Step 4: Simplify right side
    19,613.54x = 233,448,997.08
  5. Step 5: Solve for x
    x = 233,448,997.08/19,613.54
  6. Step 6: Final answer
    x = 11,902.44

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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.