Home / 19,105.97-28,664.65-9,118.22

Finding the Fourth Proportional to 19,105.97, 28,664.65 and 9,118.22

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Solution

The fourth proportional to 19,105.97, 28,664.65 and 9,118.22 is: 13,680.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,105.97 : 28,664.65 = 9,118.22 : x
  2. Step 2: Convert to fraction form
    19,105.97/28,664.65 = 9,118.22/x
  3. Step 3: Cross multiply
    19,105.97x = 28,664.65 × 9,118.22
  4. Step 4: Simplify right side
    19,105.97x = 261,370,441.60
  5. Step 5: Solve for x
    x = 261,370,441.60/19,105.97
  6. Step 6: Final answer
    x = 13,680.04

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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.