Home / 8,579.16-12,868.56-2,735.28

Finding the Fourth Proportional to 8,579.16, 12,868.56 and 2,735.28

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Solution

The fourth proportional to 8,579.16, 12,868.56 and 2,735.28 is: 4,102.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,579.16 : 12,868.56 = 2,735.28 : x
  2. Step 2: Convert to fraction form
    8,579.16/12,868.56 = 2,735.28/x
  3. Step 3: Cross multiply
    8,579.16x = 12,868.56 × 2,735.28
  4. Step 4: Simplify right side
    8,579.16x = 35,199,114.80
  5. Step 5: Solve for x
    x = 35,199,114.80/8,579.16
  6. Step 6: Final answer
    x = 4,102.86

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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.