Home / 8,931.90-13,394.61-3,382.38

Finding the Fourth Proportional to 8,931.90, 13,394.61 and 3,382.38

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Solution

The fourth proportional to 8,931.90, 13,394.61 and 3,382.38 is: 5,072.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,931.90 : 13,394.61 = 3,382.38 : x
  2. Step 2: Convert to fraction form
    8,931.90/13,394.61 = 3,382.38/x
  3. Step 3: Cross multiply
    8,931.90x = 13,394.61 × 3,382.38
  4. Step 4: Simplify right side
    8,931.90x = 45,305,660.97
  5. Step 5: Solve for x
    x = 45,305,660.97/8,931.90
  6. Step 6: Final answer
    x = 5,072.34

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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.