Home / 9,112.60-13,671.28-2,872.82

Finding the Fourth Proportional to 9,112.60, 13,671.28 and 2,872.82

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Solution

The fourth proportional to 9,112.60, 13,671.28 and 2,872.82 is: 4,309.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,112.60 : 13,671.28 = 2,872.82 : x
  2. Step 2: Convert to fraction form
    9,112.60/13,671.28 = 2,872.82/x
  3. Step 3: Cross multiply
    9,112.60x = 13,671.28 × 2,872.82
  4. Step 4: Simplify right side
    9,112.60x = 39,275,087.48
  5. Step 5: Solve for x
    x = 39,275,087.48/9,112.60
  6. Step 6: Final answer
    x = 4,309.98

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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.