Home / 19,786.59-29,686.92-6,638.94

Finding the Fourth Proportional to 19,786.59, 29,686.92 and 6,638.94

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Solution

The fourth proportional to 19,786.59, 29,686.92 and 6,638.94 is: 9,960.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,786.59 : 29,686.92 = 6,638.94 : x
  2. Step 2: Convert to fraction form
    19,786.59/29,686.92 = 6,638.94/x
  3. Step 3: Cross multiply
    19,786.59x = 29,686.92 × 6,638.94
  4. Step 4: Simplify right side
    19,786.59x = 197,089,680.66
  5. Step 5: Solve for x
    x = 197,089,680.66/19,786.59
  6. Step 6: Final answer
    x = 9,960.77

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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.