Home / 13,194.72-19,779.93-4,872.78

Finding the Fourth Proportional to 13,194.72, 19,779.93 and 4,872.78

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Solution

The fourth proportional to 13,194.72, 19,779.93 and 4,872.78 is: 7,304.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,194.72 : 19,779.93 = 4,872.78 : x
  2. Step 2: Convert to fraction form
    13,194.72/19,779.93 = 4,872.78/x
  3. Step 3: Cross multiply
    13,194.72x = 19,779.93 × 4,872.78
  4. Step 4: Simplify right side
    13,194.72x = 96,383,247.31
  5. Step 5: Solve for x
    x = 96,383,247.31/13,194.72
  6. Step 6: Final answer
    x = 7,304.68

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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.