Home / 19,115.43-28,660.73-6,634.50

Finding the Fourth Proportional to 19,115.43, 28,660.73 and 6,634.50

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Solution

The fourth proportional to 19,115.43, 28,660.73 and 6,634.50 is: 9,947.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,115.43 : 28,660.73 = 6,634.50 : x
  2. Step 2: Convert to fraction form
    19,115.43/28,660.73 = 6,634.50/x
  3. Step 3: Cross multiply
    19,115.43x = 28,660.73 × 6,634.50
  4. Step 4: Simplify right side
    19,115.43x = 190,149,580.01
  5. Step 5: Solve for x
    x = 190,149,580.01/19,115.43
  6. Step 6: Final answer
    x = 9,947.44

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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.