Home / 8,982.90-13,480.49-3,139.52

Finding the Fourth Proportional to 8,982.90, 13,480.49 and 3,139.52

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Solution

The fourth proportional to 8,982.90, 13,480.49 and 3,139.52 is: 4,711.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,982.90 : 13,480.49 = 3,139.52 : x
  2. Step 2: Convert to fraction form
    8,982.90/13,480.49 = 3,139.52/x
  3. Step 3: Cross multiply
    8,982.90x = 13,480.49 × 3,139.52
  4. Step 4: Simplify right side
    8,982.90x = 42,322,208.41
  5. Step 5: Solve for x
    x = 42,322,208.41/8,982.90
  6. Step 6: Final answer
    x = 4,711.42

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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.