Home / 8,639.27-12,954.60-3,371.13

Finding the Fourth Proportional to 8,639.27, 12,954.60 and 3,371.13

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Solution

The fourth proportional to 8,639.27, 12,954.60 and 3,371.13 is: 5,055.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,639.27 : 12,954.60 = 3,371.13 : x
  2. Step 2: Convert to fraction form
    8,639.27/12,954.60 = 3,371.13/x
  3. Step 3: Cross multiply
    8,639.27x = 12,954.60 × 3,371.13
  4. Step 4: Simplify right side
    8,639.27x = 43,671,640.70
  5. Step 5: Solve for x
    x = 43,671,640.70/8,639.27
  6. Step 6: Final answer
    x = 5,055.02

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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.