Home / 8,568.40-12,845.88-3,378.16

Finding the Fourth Proportional to 8,568.40, 12,845.88 and 3,378.16

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Solution

The fourth proportional to 8,568.40, 12,845.88 and 3,378.16 is: 5,064.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,568.40 : 12,845.88 = 3,378.16 : x
  2. Step 2: Convert to fraction form
    8,568.40/12,845.88 = 3,378.16/x
  3. Step 3: Cross multiply
    8,568.40x = 12,845.88 × 3,378.16
  4. Step 4: Simplify right side
    8,568.40x = 43,395,437.98
  5. Step 5: Solve for x
    x = 43,395,437.98/8,568.40
  6. Step 6: Final answer
    x = 5,064.59

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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.