Home / 19,811.86-29,699.17-6,654.99

Finding the Fourth Proportional to 19,811.86, 29,699.17 and 6,654.99

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Solution

The fourth proportional to 19,811.86, 29,699.17 and 6,654.99 is: 9,976.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,811.86 : 29,699.17 = 6,654.99 : x
  2. Step 2: Convert to fraction form
    19,811.86/29,699.17 = 6,654.99/x
  3. Step 3: Cross multiply
    19,811.86x = 29,699.17 × 6,654.99
  4. Step 4: Simplify right side
    19,811.86x = 197,647,679.36
  5. Step 5: Solve for x
    x = 197,647,679.36/19,811.86
  6. Step 6: Final answer
    x = 9,976.23

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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.