Home / 8,578.26-12,867.40-3,384

Finding the Fourth Proportional to 8,578.26, 12,867.40 and 3,384

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Solution

The fourth proportional to 8,578.26, 12,867.40 and 3,384 is: 5,076.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,578.26 : 12,867.40 = 3,384 : x
  2. Step 2: Convert to fraction form
    8,578.26/12,867.40 = 3,384/x
  3. Step 3: Cross multiply
    8,578.26x = 12,867.40 × 3,384
  4. Step 4: Simplify right side
    8,578.26x = 43,543,281.60
  5. Step 5: Solve for x
    x = 43,543,281.60/8,578.26
  6. Step 6: Final answer
    x = 5,076.00

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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.