Home / 13,195.10-19,795.60-4,429.78

Finding the Fourth Proportional to 13,195.10, 19,795.60 and 4,429.78

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Solution

The fourth proportional to 13,195.10, 19,795.60 and 4,429.78 is: 6,645.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,195.10 : 19,795.60 = 4,429.78 : x
  2. Step 2: Convert to fraction form
    13,195.10/19,795.60 = 4,429.78/x
  3. Step 3: Cross multiply
    13,195.10x = 19,795.60 × 4,429.78
  4. Step 4: Simplify right side
    13,195.10x = 87,690,152.97
  5. Step 5: Solve for x
    x = 87,690,152.97/13,195.10
  6. Step 6: Final answer
    x = 6,645.66

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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.