Home / 9,112.73-13,669.65-2,872.95

Finding the Fourth Proportional to 9,112.73, 13,669.65 and 2,872.95

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Solution

The fourth proportional to 9,112.73, 13,669.65 and 2,872.95 is: 4,309.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,112.73 : 13,669.65 = 2,872.95 : x
  2. Step 2: Convert to fraction form
    9,112.73/13,669.65 = 2,872.95/x
  3. Step 3: Cross multiply
    9,112.73x = 13,669.65 × 2,872.95
  4. Step 4: Simplify right side
    9,112.73x = 39,272,220.97
  5. Step 5: Solve for x
    x = 39,272,220.97/9,112.73
  6. Step 6: Final answer
    x = 4,309.60

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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.