Home / 12,778.43-19,195.58-9,104.27

Finding the Fourth Proportional to 12,778.43, 19,195.58 and 9,104.27

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Solution

The fourth proportional to 12,778.43, 19,195.58 and 9,104.27 is: 13,676.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,778.43 : 19,195.58 = 9,104.27 : x
  2. Step 2: Convert to fraction form
    12,778.43/19,195.58 = 9,104.27/x
  3. Step 3: Cross multiply
    12,778.43x = 19,195.58 × 9,104.27
  4. Step 4: Simplify right side
    12,778.43x = 174,761,669.91
  5. Step 5: Solve for x
    x = 174,761,669.91/12,778.43
  6. Step 6: Final answer
    x = 13,676.31

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1.5x scale

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.